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simultaneous equations 3 unknown variables
Author Message
Jackomope Posted: Sunday 31st of Dec 11:22
simultaneous equations 3 unknown variables is my biggest problem. Can some on... | {"url":"http://www.linear-equation.com/linear-equation-graph/proportions/simultaneous-equations-3.html","timestamp":"2014-04-19T04:18:57Z","content_type":null,"content_length":"37199","record_id":"<urn:uuid:196ac73a-ce78-4817-8561-bed168d53f38>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416... |
$X_{0}\subset X_{1}\subset\cdots X_{n}\subset\cdots$
1. 1.
$X=\bigcup\limits_{{j\geq 0}}X_{j}$
2. 2.
3. 3.
The ring of regular functions on an ind-variety $X$ is defined to be $\K[X]:=\underleftarrow{\lim}\K[X_{j}]$ where the limit is taken with respect to the family of maps $\left\{i_{j}^{*}\colon\K[X_
{{j+... | {"url":"http://planetmath.org/indvariety","timestamp":"2014-04-18T03:35:05Z","content_type":null,"content_length":"80188","record_id":"<urn:uuid:f494d779-5f03-4f17-8d2e-f0012014379d>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00337-ip-10-147-4-33.ec2.internal.warc.gz"} |
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Light travels extremely rapidly (c = 3.00×108 ). Suppose you h... | {"url":"http://openstudy.com/updates/5157c402e4b07077e0c07c95","timestamp":"2014-04-19T19:54:03Z","content_type":null,"content_length":"27964","record_id":"<urn:uuid:ce4d8368-430c-4e27-98d8-bc21a360c552>","cc-path":"CC-MAIN-2014-15/segments/1397609537376.43/warc/CC-MAIN-20140416005217-00562-ip-10-147-4-33.ec2.internal.... |
Posts about poetry on Math Munch
Welcome to this week’s Math Munch!
Here’s something that sounds impossible: turn a single newspaper page into two rings, linked together, using only scissors and folding. No tape, no glue– just folding and a few little cuts.
Want to know how to do it? Check out this video by Mariano Tom... | {"url":"http://mathmunch.org/tag/poetry/","timestamp":"2014-04-20T23:27:12Z","content_type":null,"content_length":"61172","record_id":"<urn:uuid:0a404d2c-4ea2-4ddc-9eb7-56d549c69521>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00206-ip-10-147-4-33.ec2.internal.warc.gz"} |
Median and weighted median
Yesterday Joe Celko posted on microsoft.public.sqlserver.programming about how to write an elegant query for Weighted Median. He managed to get the correct results but always ended up with ugly code.
Joe had a feeling an elegant query existed but was not seeing it. Anyway, since Celko's books... | {"url":"http://weblogs.sqlteam.com/PETERL/archive/2009/09/16/Median-and-weighted-median.aspx","timestamp":"2014-04-19T14:55:49Z","content_type":null,"content_length":"39256","record_id":"<urn:uuid:6034b950-b678-428d-8cab-a250a91eb378>","cc-path":"CC-MAIN-2014-15/segments/1397609537271.8/warc/CC-MAIN-20140416005217-0029... |
RTG Principal Investigator/Director
Gunther Uhlmann has been working on an array of inverse problems since the 1980s. Some are related to partial differential equations, like the EIT problem; others arise from differential geometry,
like the boundary rigidity problem. His theoretical work on cloaking also makes con... | {"url":"http://www.math.washington.edu/ipde/people.html","timestamp":"2014-04-18T05:30:35Z","content_type":null,"content_length":"34138","record_id":"<urn:uuid:8bac43c4-4c5c-4082-beee-363da028e0a6>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00412-ip-10-147-4-33.ec2.internal.warc.g... |
Multiplicity results for nonlinear mixed boundary value problem
The aim of this paper is to establish multiplicity results of nontrivial and nonnegative solutions for mixed boundary value problems with the Sturm-Liouville equation. The approach is based on
variational methods.
MSC: 34B15.
boundary value problem; mixed ... | {"url":"http://www.boundaryvalueproblems.com/content/2012/1/134?fmt_view=classic","timestamp":"2014-04-18T13:08:42Z","content_type":null,"content_length":"229866","record_id":"<urn:uuid:2370146e-f972-440c-9c34-f745a919c07c>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00656-ip-10-147... |
Numerically Equivalent Proof
I need to prove the following:
a) Prove that every closed interval [a,b] is numerically equivalent to [0,1].
b) Prove that any two closed intervals [a,b] and [c,d] are numerically equivalent.
c) Prove that any two open intervals (a,b) and (c,d) are numerically equivalent.
d) Let [a,b] be a ... | {"url":"http://www.mathisfunforum.com/viewtopic.php?id=3429","timestamp":"2014-04-19T01:49:30Z","content_type":null,"content_length":"12572","record_id":"<urn:uuid:2a3bead5-98d7-4fc6-b547-897952f41c62>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00079-ip-10-147-4-33.ec2.internal.war... |
Thomas Calculus 11e + Solution + Ebook Download (posted by hidden-science Free Downloadable Books|BSCS|programming|books|BCS|physics|calculus|Free Books|Free ebooks) :
>> Saturday, January 23, 2010
Author: George B. Thomas, Maurice D. Weir, Joel Hass, Frank R. Giordano
Paperback: 1380 pages
Publisher: Addison Wesley
I... | {"url":"http://hidden-science.blogspot.com/2010/01/thomas-calculus-11e-solution-ebook.html","timestamp":"2014-04-20T03:30:03Z","content_type":null,"content_length":"90448","record_id":"<urn:uuid:60b6a886-ecab-46ac-9b54-fb574351d98f>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00237-... |
Physics Forums - View Single Post - inclined plane problem
can you please explain how you arrived at that conclusion?
You have four forces. Suppose the x-acis is along the ramp and the force F for pulling the object is aligned along this x-axis. Y-axis perpendicular to x-axis.
[tex]-mg\sin(\theta)*e_{x} - mg\cos(\thet... | {"url":"http://www.physicsforums.com/showpost.php?p=361104&postcount=3","timestamp":"2014-04-20T08:39:36Z","content_type":null,"content_length":"9077","record_id":"<urn:uuid:97efe7c2-461e-4c06-9fdd-0ea02b40b31b>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00520-ip-10-147-4-33.ec2.in... |
Course Content and Outcome
Course Content and Outcome Guide for MTH 26C
Course Number:
MTH 26C
Course Title:
Credit Hours:
Lecture Hours:
Lecture/Lab Hours:
Lab Hours:
Special Fee:
Course Description
Use decimals, to write, manipulate, interpret and solve application and formula problems. Concepts will be introduce... | {"url":"http://www.pcc.edu/ccog/default.cfm?fa=ccog&subject=MTH&course=26C","timestamp":"2014-04-16T08:26:43Z","content_type":null,"content_length":"9834","record_id":"<urn:uuid:ee01a00e-9293-44e6-8fde-1890b4965cc1>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/CC-MAIN-20140423032006-00625-ip-10-147-4-33.ec... |
2001 Conference Proceedings
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Mallory Burton
Regional Coordinator, SET-BC
825 Conrad Street
Prince Rupert, B.C. V8J 2J8
(250) 624-6621
The Math in a Box Project consists of a set of 10 popular children’s software titles (K-3), a grid showing the m... | {"url":"http://www.csun.edu/cod/conf/2001/proceedings/0132burton.htm","timestamp":"2014-04-17T07:24:24Z","content_type":null,"content_length":"3953","record_id":"<urn:uuid:03a5b736-4603-4df7-8c26-9853122cb892>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00009-ip-10-147-4-33.ec2.inte... |
Mechanics - Impacts at an Angle
When a ball collides with a wall, at an angle θ say, the impulse exerted on the ball is perpendicular to the wall and causes a change in the momentum of the ball in that direction; it does not
however affect the momentum parallel to the wall.
Therefore, if the approach velocity of the sp... | {"url":"http://www.maths.surrey.ac.uk/explore/matthewspages/obliqueimpact.html","timestamp":"2014-04-17T18:40:30Z","content_type":null,"content_length":"13978","record_id":"<urn:uuid:17101723-8f87-4056-b18f-b57dfd0bdc89>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00240-ip-10-147-4-... |
zumino research
Research Interests
I am interested in the unification of the fundamental forces of physics, i.e. of those described by the standard model of strong, weak and electromagnetic interactions, and of gravity as described by
Einstein’s general relativity. The path to this unification appears to be through sup... | {"url":"http://www.physics.berkeley.edu/research/faculty/Zumino.html","timestamp":"2014-04-16T13:11:37Z","content_type":null,"content_length":"11146","record_id":"<urn:uuid:774029d2-ca01-41c4-a892-0bb4efc53483>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00611-ip-10-147-4-33.ec2.int... |
Pre-Exam Review: Trig is killing me
June 20th 2010, 07:31 PM #1
Jun 2010
I hope you guys can help me! If I don't get a 75% on this exam I fail, and will not graduate.
I'm having trouble clicking with Trig. I have the info recorded such as;
Use Soh-Cah-Toa for right angled triangles
Use Sine Law for ... | {"url":"http://mathhelpforum.com/trigonometry/149014-pre-exam-review-trig-killing-me.html","timestamp":"2014-04-20T03:58:35Z","content_type":null,"content_length":"34000","record_id":"<urn:uuid:c87f6713-1b92-4cba-8f50-336dde371f83>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00125-... |
Queens Village Algebra 1 Tutor
Find a Queens Village Algebra 1 Tutor
...In Turkey and Bangladesh I taught non-English speakers over the course of a month. I administered quizzes and checkpoints that measured their incremental aptitude. I programmed a ceremony at
the end of the course that showcased all the progress... | {"url":"http://www.purplemath.com/queens_village_ny_algebra_1_tutors.php","timestamp":"2014-04-20T19:32:26Z","content_type":null,"content_length":"24397","record_id":"<urn:uuid:79746673-cb98-42e5-831c-6d605cbc3f08>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00047-ip-10-147-4-33.ec... |
On $k$-Walk-Regular Graphs
Considering a connected graph $G$ with diameter $D$, we say that it is $k$-walk-regular, for a given integer $k$ $(0\leq k \leq D)$, if the number of walks of length $\ell$ between any pair of
vertices only depends on the distance between them, provided that this distance does not exceed $k$.... | {"url":"http://www.combinatorics.org/ojs/index.php/eljc/article/view/v16i1r47","timestamp":"2014-04-16T22:24:09Z","content_type":null,"content_length":"14920","record_id":"<urn:uuid:16e34dab-8d43-41ff-9f38-589f451aa3e4>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00634-ip-10-147-4-... |
Tensor algebra question
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1)Why embedding of ( not necessarily finite-dimensional) vector spaces $V\rightarrow W$ produces embedding of tensor algebras $T(V)\rightarrow T(W)$. I can prove it using Hamel basis in $W$ but is
there a nicer ( more functorial ) argument? 2) How to prove the same s... | {"url":"http://mathoverflow.net/questions/69031/tensor-algebra-question/69033","timestamp":"2014-04-18T15:41:31Z","content_type":null,"content_length":"61002","record_id":"<urn:uuid:b8aaec40-e90b-4e5d-af7c-7c9b10bc5dfe>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00610-ip-10-147-4-3... |
Enhancing Weather Information with Probability Forecasts (Adopted by AMS Council 13 January 2002)
Much of the informational content of meteorological data, models, techniques, and forecaster thought processes is not being conveyed to the users of weather forecasts. Making and disseminating
forecasts in probabilistic te... | {"url":"http://www.ametsoc.org/POLICY/enhancingwxprob_final.html","timestamp":"2014-04-19T19:38:47Z","content_type":null,"content_length":"13249","record_id":"<urn:uuid:746773ab-943d-44ad-821b-915721c02e3a>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00473-ip-10-147-4-33.ec2.intern... |
Roopville Prealgebra Tutor
Find a Roopville Prealgebra Tutor
...If you are in need of a tutor in English, German, writing, or the arts I can help! I have a degree in Global Studies with a minor in German from the University of West Georgia. In this program
I studied everything from psychology to Geography of the Eu... | {"url":"http://www.purplemath.com/roopville_prealgebra_tutors.php","timestamp":"2014-04-16T19:40:31Z","content_type":null,"content_length":"23987","record_id":"<urn:uuid:35aec705-7ddb-4324-8dac-5566661d8744>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-20140423032003-00062-ip-10-147-4-33.ec2.intern... |
Extension Tubes and the Inverse Square Law
09-01-2010 11:53 PM #1
Join Date
Jan 2006
Georgia, USA
Extension Tubes and the Inverse Square Law
Hello Forum.
I have been in a discussion with a friend about close up imaging with tubes and bellows. A question has arisen from that, and with which I need some... | {"url":"http://www.apug.org/forums/forum206/81327-extension-tubes-inverse-square-law.html","timestamp":"2014-04-18T00:54:43Z","content_type":null,"content_length":"91825","record_id":"<urn:uuid:64eb64bf-5184-482a-aa24-3a7424a42f82>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00541-... |
In the xy-plane, line l passes through the origin and is perpendicular to the line 3x + 2y = k. k is constant.If the... - Homework Help - eNotes.com
In the xy-plane, line l passes through the origin and is perpendicular to the line 3x + 2y = k. k is constant.If the 2 lines intersect at (t, t + 1), what is t?
Im confuse... | {"url":"http://www.enotes.com/homework-help/xy-plane-line-l-passes-through-origin-374736","timestamp":"2014-04-17T08:30:39Z","content_type":null,"content_length":"26339","record_id":"<urn:uuid:eaff16e1-4bdb-4109-8ae6-99a098753f5d>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00057-i... |
4 Corner Southwest Symposium 2013
The physics of iridium-based 5d transition metal oxides has attracted significant interest due to the potential for exotic magnetic and electronic ground states driven by strong spin-orbit coupling
effects. Among the most extensively studied iridates is the layered perovskite Sr2IrO4, ... | {"url":"http://www.perimeterinstitute.ca/video-library/collection/4-corner-southwest-symposium-2013","timestamp":"2014-04-19T03:36:18Z","content_type":null,"content_length":"51986","record_id":"<urn:uuid:9f6e5998-eef3-43ae-8bfa-58cd5fda7ba5>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-201404160052... |
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Here's the question you clicked on:
A plane fare including 8% in taxes and fees, is $280.80. How m... | {"url":"http://openstudy.com/updates/50f70598e4b007c4a2eb2c22","timestamp":"2014-04-18T13:55:22Z","content_type":null,"content_length":"102013","record_id":"<urn:uuid:05a8ed3d-b24d-4b99-be60-4e45a41d0054>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00079-ip-10-147-4-33.ec2.internal.... |
The infinite monkeys investment theorem
The infinite monkeys investment theorem
Originally written for thisisby.us
Oct. 29, 2008 at 08:43pm
This is a variation on the Infinite monkeys theorem.
Take 1024 monkeys and have them randomly choose between buying or selling a stock. Ignore the 512 that were wrong, and have the... | {"url":"http://cjyu.tripod.com/investmentguru.html","timestamp":"2014-04-20T08:48:12Z","content_type":null,"content_length":"16793","record_id":"<urn:uuid:8d9d7966-a5b0-4808-8077-81b83a075e6a>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00341-ip-10-147-4-33.ec2.internal.warc.gz"} |
ASME Text Booklet
ASME Text Booklet: SI Units in Thermodynamics
American Society of Mechanical Engineers, 1976 - Metric system - 53 pages
From inside the book
10 pages matching gas constant in this book
Where's the rest of this book?
Results 1-3 of 10
What people are saying - Write a review
We haven't foun... | {"url":"http://books.google.com/books?id=G4ZmAAAAMAAJ&q=gas+constant&dq=related:LCCN12006041&source=gbs_word_cloud_r&cad=4","timestamp":"2014-04-18T12:04:57Z","content_type":null,"content_length":"97326","record_id":"<urn:uuid:6a1567dc-753c-4de5-99f2-99d6ee5b2368>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/w... |
Homework Help
Posted by Felicia on Monday, October 1, 2012 at 7:16pm.
Consider the planes given by the equations
(a) Find a vector v parallel to the line of intersection of the planes.
(b)Find the equation of a plane through the origin which is perpendicular to the line of intersection of these two planes.
For part a) ... | {"url":"http://www.jiskha.com/display.cgi?id=1349133397","timestamp":"2014-04-20T14:51:47Z","content_type":null,"content_length":"9297","record_id":"<urn:uuid:c9f2e078-7dc3-4a99-9acc-8c77d4d9322b>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00431-ip-10-147-4-33.ec2.internal.warc.gz... |
Monotonicity of a certain parametric integral
up vote 3 down vote favorite
I would like to ask for some help (hints, ideas) in solving the following problem:
Given integer $n>0$ and real $\alpha>0,\beta>1$ we want to show, that
if we define for any $x\in\mathbb{R}^{n}$ the function $$ g(\alpha,x) = \prod\limits_{i=0}^{... | {"url":"http://mathoverflow.net/questions/75305/monotonicity-of-a-certain-parametric-integral","timestamp":"2014-04-19T12:47:03Z","content_type":null,"content_length":"49831","record_id":"<urn:uuid:55903d6a-24a4-4a12-a51d-f4bed2f255a7>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00... |
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Topic: How to make this bandpass filter?
Replies: 5 Last Post: Feb 1, 2010 12:33 PM
Messages: [ Previou... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2033410&messageID=6962117","timestamp":"2014-04-19T08:46:28Z","content_type":null,"content_length":"23070","record_id":"<urn:uuid:0c34fa6f-2d9b-46ad-97f7-a4a252e28c34>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00140-ip-10-147-4... |
On page 134 of the Technical Manual, the power cell of the Type 1 and 2 phasers are described. One part reads 'When one considers that total stored energy of even the Type 1 phaser, if released all
at once, is enough to vaporize three cubic metres of tritanium, it is reassuring to know that a full storage cannot be dis... | {"url":"http://www.ditl.org/pagarticle.php?ArticleID=35&ListID=Ships&ListOption=temp&ListReset=Yes","timestamp":"2014-04-18T13:39:01Z","content_type":null,"content_length":"15811","record_id":"<urn:uuid:fe7b2690-4049-4326-9ee8-f0fe2a03a270>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-201404160052... |
Homework Help
Posted by cel on Monday, November 29, 2010 at 9:31pm.
Show that the equation x^3 - 15x + c = o has exactly one real root.
All I know is that it has something to do with the Mean Value Theorem/Rolle's Theorem.
• AP Calculus - Reiny, Monday, November 29, 2010 at 11:25pm
You must have a typo.
There... | {"url":"http://www.jiskha.com/display.cgi?id=1291084272","timestamp":"2014-04-21T13:46:55Z","content_type":null,"content_length":"9208","record_id":"<urn:uuid:f8b68f99-2296-49e5-81e8-89140308518f>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00146-ip-10-147-4-33.ec2.internal.warc.gz... |
a question of ranks of matrices
up vote 5 down vote favorite
Let $S=\{A_{1}, ..., A_{m}\}$ be a set of $n \times n$ symmetric matrices and $m>n$, the rank $r(A_{i})=1$ for each $i$. Suppose that for any $m-1$ matrices $\{A_{i_{1}},...,A_{i_{m-1}}\}$ in $S$, we
have the rank of matrix $r(\Sigma_{j}A_{i_{j}}) \leq t$.
My... | {"url":"http://mathoverflow.net/questions/139054/a-question-of-ranks-of-matrices","timestamp":"2014-04-16T19:45:56Z","content_type":null,"content_length":"57639","record_id":"<urn:uuid:2612874f-fb37-4882-aff9-541c4abe9adb>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00191-ip-10-147... |
m the
Tuesday, July 1st, 2008
IN 1999, legendary theoretical physicist Hans Bethe delivered three lectures on quantum theory to his neighbors at the Kendal of Ithaca retirement community (near Cornell University). Given by
Professor Bethe at age 93, the lectures are presented here as QuickTime videos synchronized with ... | {"url":"http://www.interactions.org/video/tag/quantum-theory","timestamp":"2014-04-17T06:42:52Z","content_type":null,"content_length":"23671","record_id":"<urn:uuid:2074a222-eee1-4339-b8e4-d79e1f04e3be>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00632-ip-10-147-4-33.ec2.internal.w... |
Equivalence class
August 9th 2007, 07:59 PM
Equivalence class
Problem: Let $f: A \to B$ be a surjective map of sets. Prove that the relation $a \sim b \Leftrightarrow f(a) = f(b)$ is an equivalence relation whose equivalence classes are the fibers of $f$.
My Work/Thoughts: What does a surjective map of sets mea... | {"url":"http://mathhelpforum.com/discrete-math/17652-equivalence-class-print.html","timestamp":"2014-04-19T02:14:04Z","content_type":null,"content_length":"10439","record_id":"<urn:uuid:a9c32cfb-df41-43ea-b8dd-fe36f769e508>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00298-ip-10-147... |
J. Rákosník (ed.),
Function spaces, differential operators and nonlinear analysis.
Proceedings of the conference held in Paseky na Jizerou, September 3-9, 1995.
Mathematical Institute, Czech Academy of Sciences, and Prometheus Publishing House, Praha 1996
p. 215 - 220
... | {"url":"http://www.emis.de/proceedings/Paseky95/18.html","timestamp":"2014-04-16T14:07:25Z","content_type":null,"content_length":"1926","record_id":"<urn:uuid:7277d6b1-3dbb-49a0-8166-2207c023266d>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00418-ip-10-147-4-33.ec2.internal.warc.gz... |
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Evaluate: \[ \huge \int_{-\infty}^\infty {e^{ax} \over 1 + e^x... | {"url":"http://openstudy.com/updates/50476f64e4b0c3bb09860ba6","timestamp":"2014-04-20T18:44:24Z","content_type":null,"content_length":"44635","record_id":"<urn:uuid:a02f3b1e-3f26-405f-9ebf-8ace4463e365>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00490-ip-10-147-4-33.ec2.internal.... |
Best way to introduce the Chinese Remainder Theorem (to a high school student)
up vote 2 down vote favorite
What do you think to be the most effective way to teach the Chinese remainder theorem to a smart high school student, which is supposed to only have a soft idea about how modular arithmetic works,
and where by ef... | {"url":"http://mathoverflow.net/questions/42908/best-way-to-introduce-the-chinese-remainder-theorem-to-a-high-school-student/42963","timestamp":"2014-04-18T13:37:02Z","content_type":null,"content_length":"78968","record_id":"<urn:uuid:e406d61c-3fc9-4398-9caa-09e8a5638e8b>","cc-path":"CC-MAIN-2014-15/segments/1397609533... |
Calculate and verify the orthonormal basis vectors for the range of a full rank matrix.
Define a matrix and find the rank.
A = [1 0 1;-1 -2 0; 0 1 -1];
r = rank(A)
r =
Since A is a square matrix of full rank, the orthonormal basis calculated by orth(A) matches the matrix U calculated in the singular value decomposition... | {"url":"http://www.mathworks.com/help/matlab/ref/orth.html?nocookie=true","timestamp":"2014-04-20T19:26:43Z","content_type":null,"content_length":"45993","record_id":"<urn:uuid:40295504-75d6-4828-8985-391f321fe245>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00031-ip-10-147-4-33.ec... |
Adiabatic quantum optimization fails for random instances of NP-complete problems
Adiabatic quantum optimization has attracted a lot of attention because small scale simulations gave hope that it would allow to solve NP-complete problems efficiently. Later, negative results proved
the existence of specifically designed... | {"url":"http://perimeterinstitute.ca/videos/adiabatic-quantum-optimization-fails-random-instances-np-complete-problems","timestamp":"2014-04-21T15:15:21Z","content_type":null,"content_length":"27845","record_id":"<urn:uuid:47d72aa8-8851-427f-821a-41b9b3788298>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/... |
How Many Hidden Faces?
Date: 07/07/2002 at 11:54:54
From: Amy
Subject: Hidden Faces, Sequences
I have to do an investigation at school on hidden faces. When you
look at a cube you cannot see one face - this face is hidden. So if
you have one cube then two cubes all in a straight line up to eight
you will work out a pat... | {"url":"http://mathforum.org/library/drmath/view/60910.html","timestamp":"2014-04-17T19:01:04Z","content_type":null,"content_length":"6842","record_id":"<urn:uuid:fccdaa34-9e5b-46c0-9f6a-4e1261a3cb4d>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00433-ip-10-147-4-33.ec2.internal.war... |
Factoring in Algebra - Polynomials
Home » Polynomials
» Factoring by Grouping
Factoring in Algebra
Lesson 2 - Factoring by Grouping
Factoring in Algebra can be accomplished in many different ways. When it comes to polynomials, each situation is different based on the make-up of the polynomial. In our last lesson, we le... | {"url":"http://www.algebra-class.com/factoring-in-algebra.html","timestamp":"2014-04-19T06:53:37Z","content_type":null,"content_length":"34367","record_id":"<urn:uuid:7500da82-1f0e-4bda-9c00-d8053dbe14e3>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00278-ip-10-147-4-33.ec2.internal.... |
help please - polynomial factors - how to solve (not the answer)
November 7th 2012, 01:27 PM #1
Nov 2012
help please - polynomial factors - how to solve (not the answer)
Hi, I'm just looking for a suggestion on how to go about solving this. I'm not looking for the answer to the question, I have that in the back... | {"url":"http://mathhelpforum.com/algebra/206995-help-please-polynomial-factors-how-solve-not-answer.html","timestamp":"2014-04-16T17:36:58Z","content_type":null,"content_length":"47437","record_id":"<urn:uuid:3c82ab61-b445-4df1-8571-21adb50c9a56>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-201404... |
Zentralblatt MATH
Publications of (and about) Paul Erdös
Zbl.No: 699.05001
Autor: (Ahlswede, Rudolf; Erdös, Paul; Pach, János; Spencer, Joel; Nesetril, J.; Babai, Laszlo; Fraissé, R.; Graham, Ronald L.; Sloane, N.J.A.; Tuza, Zs.)
Title: Pr... | {"url":"http://www.emis.de/classics/Erdos/cit/69905001.htm","timestamp":"2014-04-21T14:47:35Z","content_type":null,"content_length":"4500","record_id":"<urn:uuid:4c55ea3a-b963-49cc-942d-a7d35224181d>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00170-ip-10-147-4-33.ec2.internal.warc... |
Improper Integrals
October 13th 2011, 01:03 PM #1
Sep 2011
Hey guys, I have a question about improper integrals.
For example lets say the question is 1/(x-2)^3/2 dx and the interval is between infinity and 3.
How would I be able to determine if its convergent or divergent and if its convergent solve.
... | {"url":"http://mathhelpforum.com/calculus/190298-improper-integrals.html","timestamp":"2014-04-17T06:55:05Z","content_type":null,"content_length":"55148","record_id":"<urn:uuid:c7618627-989b-4ec7-ac3c-fc38518113d7>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00031-ip-10-147-4-33.ec2... |
Classical Theory of
Based on a highly regarded lecture course at Moscow State University, this is a clear and systematic introduction to gauge field theory. It is unique in providing the means to master gauge field
theory prior to the advanced study of quantum mechanics. Though gauge field theory is typically included... | {"url":"https://play.google.com/store/books/details?id=BxjL6EkIpfUC","timestamp":"2014-04-21T15:20:00Z","content_type":null,"content_length":"105425","record_id":"<urn:uuid:cec68b2a-f7a1-46f6-b3f6-6950030c77f2>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00210-ip-10-147-4-33.ec2.in... |
integration of quotient
September 16th 2008, 02:22 AM #1
May 2008
integration of quotient
if anyone could help me with the integration of this quotient it would be greatly appreciated.
i have tried and tried but just cant get the right integral
$<br /> \int \frac{x+2}{x^2-7x+12}dx<br />$
thanks a lo... | {"url":"http://mathhelpforum.com/calculus/49290-integration-quotient.html","timestamp":"2014-04-19T11:26:46Z","content_type":null,"content_length":"49692","record_id":"<urn:uuid:b42faadf-73a8-4f7b-b8b5-8068113ee4e5>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00068-ip-10-147-4-33.ec... |
Mathematics BS, BA
What is the study of Mathematics BS?
“Mathematics reveals hidden patterns that help us understand the world around us. Now much more than arithmetic and geometry, mathematics today is a diverse discipline that deals with data,
measurements, and observations from science; with inference, deduction, an... | {"url":"http://www.wwu.edu/majors/mathematics-bs-ba","timestamp":"2014-04-21T14:59:41Z","content_type":null,"content_length":"23825","record_id":"<urn:uuid:e5e0835b-6d74-4188-ae5e-eac7cd7603fa>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00521-ip-10-147-4-33.ec2.internal.warc.gz"} |
Special & General Relativity Questions and Answers
How do you really know that the limits to general relativity for strong fields are set inside black holes?
Because general relativity is a classical field theory which predicts that under certain conditions, infinities will occur...called singularities. All known singu... | {"url":"http://einstein.stanford.edu/content/relativity/q2672.html","timestamp":"2014-04-19T01:49:13Z","content_type":null,"content_length":"5737","record_id":"<urn:uuid:d79b65f2-f901-4f82-bcd3-52d4dbfec8a0>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00229-ip-10-147-4-33.ec2.intern... |
1. The definition of a right angle is the meeting point between two perpendicular straight lines.
An example of a right angle is a 90º angle.
an angle of 90 degrees; angle made by the meeting of two straight lines perpendicular to each other
An angle formed by the perpendicular intersection of two straight line... | {"url":"http://www.yourdictionary.com/right-angle","timestamp":"2014-04-17T07:13:09Z","content_type":null,"content_length":"46559","record_id":"<urn:uuid:9d788db0-3594-499a-8250-70eca20dc0d6>","cc-path":"CC-MAIN-2014-15/segments/1398223206672.15/warc/CC-MAIN-20140423032006-00295-ip-10-147-4-33.ec2.internal.warc.gz"} |
the encyclopedic entry of decagon
In geometry, a decagon is any polygon with ten sides and ten angles, and usually refers to a regular decagon, having all sides of equal length and all angles equal to 144°, therefore making each
angle of a regular decagon be 144°. Its Schläfli symbol is {10}. The area of a regular deca... | {"url":"http://www.reference.com/browse/decagon","timestamp":"2014-04-17T10:12:45Z","content_type":null,"content_length":"80761","record_id":"<urn:uuid:343a8a8e-0d0e-4820-bc75-e94ce0a5c701>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00019-ip-10-147-4-33.ec2.internal.warc.gz"} |
How would I find the equation for the asymptotes of the hyperbola y[squared]/4 - x[squared]/16=1?
Umm, it's the season for hyperbolas now. The parabolas went silent. [y^2 / 4] -[x^2 / 16] = 1 -----------(1) The x^2 term is negative, so the hyperbola does not open left and right ---not along the
x-axis, not "horizontal"... | {"url":"http://mathhelpforum.com/pre-calculus/11675-hyperbola-print.html","timestamp":"2014-04-16T07:33:08Z","content_type":null,"content_length":"6915","record_id":"<urn:uuid:0545cc15-e7cb-4d17-bef1-088d9525be64>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00090-ip-10-147-4-33.ec2... |
Control theory was born as an interdisciplinary branch of engineering and mathematics, concerned with the behavior of dynamical systems. It has become a major field in applied mathematics.
Applications range from celestial mechanics in astronomy (including Earth and Solar System astronomy), to chemical physics, to biop... | {"url":"http://www.th.physik.uni-bonn.de/people/fard/COCO2010/Welcome.html","timestamp":"2014-04-18T10:34:45Z","content_type":null,"content_length":"30530","record_id":"<urn:uuid:68d3a30d-f830-4c5e-b3f3-a3e57c2b3f27>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00149-ip-10-147-4-33.... |
Houston Texans Message Board & Forum - TexansTalk.com - View Single Post - Progress Markers
Originally Posted by Lucky
I'm a little confused about some of these numbers. Shouldn't some of these league average numbers, such as 3rd conversion %, be the same for both offense & defense? Did you subtract the numbers from
t... | {"url":"http://www.texanstalk.com/forums/showpost.php?p=3817&postcount=18","timestamp":"2014-04-16T14:20:31Z","content_type":null,"content_length":"18136","record_id":"<urn:uuid:0398546f-68c1-4fab-9a93-2418591c504b>","cc-path":"CC-MAIN-2014-15/segments/1397609523429.20/warc/CC-MAIN-20140416005203-00455-ip-10-147-4-33.e... |
North Hills Math Tutor
...As an Electrical Engineering major I have been utilizing Differential Equations and its applications heavily in my courses. My engineering experience has given me a deep insight and
understanding of differential equations. I have also tutored differential equations at CSUN to students majo... | {"url":"http://www.purplemath.com/North_Hills_Math_tutors.php","timestamp":"2014-04-18T14:04:12Z","content_type":null,"content_length":"23831","record_id":"<urn:uuid:4b361c0a-e1dc-4d12-a840-db6f952dc3aa>","cc-path":"CC-MAIN-2014-15/segments/1397609533689.29/warc/CC-MAIN-20140416005213-00183-ip-10-147-4-33.ec2.internal.... |
Need help to find a bug
Need help to find a bug
The programme enters an endless loop after printing out. What am I doing wrong?
#include <bitset>
#include <math.h>
int main()
static const unsigned n = 27;
static unsigned int w[ n ] = {10,12,10,4,12,29,7,27,4,
static float p[ n ] = {8.34,10.5... | {"url":"http://cboard.cprogramming.com/cplusplus-programming/102861-need-help-find-bug-printable-thread.html","timestamp":"2014-04-23T20:52:25Z","content_type":null,"content_length":"20952","record_id":"<urn:uuid:25e44937-3063-4871-b22a-b988089a323e>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-201... |
Algebra Tutors
Tacoma, WA 98404
Tutoring in all academic subjects; expert on the SAT
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Carson, CA Algebra 2 Tutor
Find a Carson, CA Algebra 2 Tutor
...My tutoring is always fashioned with the student in mind. After working with someone for a short time I can mold my teaching style to his or her needs. My experience in teaching goes back 12
10 Subjects: including algebra 2, physics, calculus, trigonom... | {"url":"http://www.purplemath.com/Carson_CA_Algebra_2_tutors.php","timestamp":"2014-04-21T13:18:09Z","content_type":null,"content_length":"23775","record_id":"<urn:uuid:d412a17b-6c05-4673-8287-1705269b2354>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00427-ip-10-147-4-33.ec2.interna... |
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Here's the question you clicked on:
What point is 6 units left and 3 units down from point (2, 2)?... | {"url":"http://openstudy.com/updates/50f50a21e4b0246f1fe36ca4","timestamp":"2014-04-20T18:30:12Z","content_type":null,"content_length":"142328","record_id":"<urn:uuid:f29848f7-a6ac-4404-8fb6-2577d22683ff>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00127-ip-10-147-4-33.ec2.internal... |
Covariance between uniform distributed variables. Urgent!
February 20th 2013, 05:56 PM
Covariance between uniform distributed variables. Urgent!
Now this particular problem has done my head in. Just cant wrap my head around it and im completely lost. Here it is:
Assume that two continuous random variables x and... | {"url":"http://mathhelpforum.com/advanced-statistics/213516-covariance-between-uniform-distributed-variables-urgent-print.html","timestamp":"2014-04-24T00:17:22Z","content_type":null,"content_length":"3536","record_id":"<urn:uuid:3c3d336b-aa0f-457c-aab5-f6897b395800>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5... |
Regularity of solutions to a linear degenerate parabolic pde
up vote 6 down vote favorite
I've encountered the following problem which is causing me some trouble :
Let $(M^2,g)$ be a smooth compact Riemannian surface (with constant curvature for instance) and consider a smooth function $u:M\times [0,1) \to \mathbb{R}$ ... | {"url":"http://mathoverflow.net/questions/82710/regularity-of-solutions-to-a-linear-degenerate-parabolic-pde","timestamp":"2014-04-20T11:13:31Z","content_type":null,"content_length":"47718","record_id":"<urn:uuid:8dc762fa-46df-4fd8-b2c5-1a4ce4fe3e8b>","cc-path":"CC-MAIN-2014-15/segments/1397609538423.10/warc/CC-MAIN-20... |
Cryptology ePrint Archive: Report 2010/263
Lattice Reduction and Polynomial SolvingRaphaël MarinierAbstract: In this paper, we suggest a generalization of Coppersmith's method for finding integer roots of a multivariate polynomial. Our
generalization allows finding integer solutions of a system of $k$ multivariate poly... | {"url":"http://eprint.iacr.org/2010/263","timestamp":"2014-04-20T18:26:37Z","content_type":null,"content_length":"3824","record_id":"<urn:uuid:e9b2afdb-74f8-4465-a5c7-29d21f441eb0>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00034-ip-10-147-4-33.ec2.internal.warc.gz"} |
Doron Zeilberger
Opinion 50: Tim Gowers's "Mathematics: A Very Short Introduction" Should be Recommended Reading To Everyone and Required Reading To Mathematicians
By Doron Zeilberger
Written: Oct. 25, 2002
Just because we do mathematics everyday, and make a living out of it, does not mean that we know what mathematics... | {"url":"http://www.math.rutgers.edu/~zeilberg/Opinion50.html","timestamp":"2014-04-21T09:36:02Z","content_type":null,"content_length":"4721","record_id":"<urn:uuid:9c26a272-8b4a-4764-809b-26cf660257a8>","cc-path":"CC-MAIN-2014-15/segments/1397609539705.42/warc/CC-MAIN-20140416005219-00548-ip-10-147-4-33.ec2.internal.wa... |
Steven Weinberg offers a way to explain inflation
Interesting questions!
Are there any fundamental all-embracing theories in physics?
Or are there only "effective" theories, like electromagnetism (which is important far from an electron, where the charge doesn't "run') or superconductivity (which is important when elec... | {"url":"http://www.physicsforums.com/showthread.php?t=355757&page=9","timestamp":"2014-04-18T13:48:27Z","content_type":null,"content_length":"69591","record_id":"<urn:uuid:fc1a7f51-f613-4caa-bf02-e22cef0ace2f>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00191-ip-10-147-4-33.ec2.inte... |
Hercules Math Tutor
Find a Hercules Math Tutor
...I have extensive knowledge of pretty much all of math through the end of college, and of statistics well beyond that. I'm good at zeroing in on precisely what's giving you trouble, and will
break each problem into pieces you can understand and learn. While a grad st... | {"url":"http://www.purplemath.com/Hercules_Math_tutors.php","timestamp":"2014-04-20T19:16:03Z","content_type":null,"content_length":"23768","record_id":"<urn:uuid:b934f35e-845d-49d1-a79a-36b1cac99fea>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00578-ip-10-147-4-33.ec2.internal.war... |
Hayward, CA Algebra 2 Tutor
Find a Hayward, CA Algebra 2 Tutor
...I will try to help you arrive at those goals if you will work with me regularly, spend time doing practice work patiently and be focused on the goals you have set for yourself. I worked as a
database application support specialist for years and befor... | {"url":"http://www.purplemath.com/Hayward_CA_Algebra_2_tutors.php","timestamp":"2014-04-19T07:05:20Z","content_type":null,"content_length":"23965","record_id":"<urn:uuid:af3d08dc-064b-495f-954d-aaf8f8ea038a>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00113-ip-10-147-4-33.ec2.inter... |
Monte Carlo Strategies in Scientific Computing
Results 1 - 10 of 325
, 2004
"... Statistical applications in fields such as bioinformatics, information retrieval, speech processing, image processing and communications often involve large-scale models in which thousands or
millions of random variables are linked in comp... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=22851","timestamp":"2014-04-16T17:44:03Z","content_type":null,"content_length":"39941","record_id":"<urn:uuid:332d4b86-84ff-4ec0-a6e5-0865eff8d69c>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00229-ip-10-147-4-33.ec2.internal.warc... |
1 What is a spontaneous process?
Processes that proceed in a definite direction when left to themselves and in the absence of any attempt to drive them in reverse are known as natural processes or spontaneous changes. In many
cases our everyday life experiences teach us the direction in which spontaneous change can o... | {"url":"http://www.chem1.com/acad/webtext/thermeq/TE1.html","timestamp":"2014-04-17T15:50:54Z","content_type":null,"content_length":"41417","record_id":"<urn:uuid:dd25cfba-3759-45f7-a703-a77d07b37b26>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00496-ip-10-147-4-33.ec2.internal.warc... |
Lindenwood University - Undergraduate Admissions - Mathematics Placement Testing
Undergraduate Admissions - Mathematics Placement Testing
What is the purpose of the Mathematics Placement Exam?
The Mathematics Placement system at Lindenwood University is designed to assess students’ skills before they enroll in th... | {"url":"http://www.lindenwood.edu/admissions/placementMath.html","timestamp":"2014-04-16T07:35:23Z","content_type":null,"content_length":"39903","record_id":"<urn:uuid:075b3185-a62e-40da-ad86-b277b3fa139e>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00443-ip-10-147-4-33.ec2.interna... |
skew-Hermitian matrix
skew-Hermitian matrix
Proof. Property (1) follows directly from property (2) since the trace is the sum of the eigenvalues. But one can also give a simple proof as follows. Let $x_{{ij}}$ and $y_{{ij}}$ be the real
respectively imaginary parts of the elements in $A$. Then the diagonal elements of ... | {"url":"http://planetmath.org/SkewHermitianMatrix","timestamp":"2014-04-17T21:32:48Z","content_type":null,"content_length":"78750","record_id":"<urn:uuid:48624fe5-2cb9-440a-95c7-20d75afd9253>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00058-ip-10-147-4-33.ec2.internal.warc.gz"} |
Who's That Mathematician? Paul R. Halmos Collection - Page 14
For more information about Paul R. Halmos (1916-2006) and about the Paul R. Halmos Photograph Collection, please see the introduction to this article on page 1. A new page featuring six photographs
will be posted at the start of each week during 2012.
Halmos... | {"url":"http://www.maa.org/publications/periodicals/convergence/whos-that-mathematician-paul-r-halmos-collection-page-14?device=desktop","timestamp":"2014-04-17T16:04:31Z","content_type":null,"content_length":"120273","record_id":"<urn:uuid:99e1aa33-b53e-4d76-b989-c8f7edb71686>","cc-path":"CC-MAIN-2014-15/segments/1397... |
Homework Help
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About 3/4 of the track team are girls. About 3/4 of these girls are in 8 th grade. What fraction of th e students are grade 8 girls? 1/3?
Sunday, November 14, 2010 at 9:08pm
5th grade alliteration
i need help with 5th grade alliteration homework
Tuesday, November 9,... | {"url":"http://www.jiskha.com/10th_grade/?page=21","timestamp":"2014-04-19T04:34:58Z","content_type":null,"content_length":"37637","record_id":"<urn:uuid:343642ab-ba18-4bcd-ab46-8d65875d04c6>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00478-ip-10-147-4-33.ec2.internal.warc.gz"} |
Finding prime numbers code issue
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Here's (nearly) the best I can do with the Sieve of Erastothenes:
<script type="text/javascript">
var nums = [ ];
var primes ... | {"url":"http://www.codingforums.com/javascript-programming/297479-finding-prime-numbers-code-issue-2.html","timestamp":"2014-04-20T18:55:36Z","content_type":null,"content_length":"105902","record_id":"<urn:uuid:77cfbf1c-8b29-40d1-a16c-c6bd86be1eb6>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-2014... |
Question about a map-definition
Thats it.
This is true, but if you look at the code above you see that (I'm jusing CAPS
for code) COMBINE is called with two arguments, which means the lambda you
pass as COMBINE has to have two arguments, too, right? So it's not quite clear
to me why you thought the R argument was a t... | {"url":"http://www.megasolutions.net/scheme/Question-about-a-map-definition-68628.aspx","timestamp":"2014-04-16T15:59:54Z","content_type":null,"content_length":"25710","record_id":"<urn:uuid:1458c176-fafb-4f8d-8ef8-99a4a11450f3>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00206-ip-... |
Mathematics and Online Marketing
We love digital - Call and say hello - Mon - Fri, 9am - 5pm
Mathematics as defined by Wikipedia is “the study of quantity, structure, space, and change. Mathematicians seek out patterns and formulate new conjectures. Mathematicians resolve the truth or
falsity of conjectures by mathemat... | {"url":"http://www.koozai.com/blog/search-marketing/mathematics-and-online-marketing/","timestamp":"2014-04-17T06:43:51Z","content_type":null,"content_length":"48481","record_id":"<urn:uuid:767a14d5-22d2-48ca-ae72-998eced43d75>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00280-ip-1... |
Process Controllers Predict the Future
A feedback controller can steer a process variable toward the desired setpoint only if it can somehow predict the future effects of its current control efforts. A model-based controller does so with
the help of a mathematical representation of the process’s behavior. A well-tuned ... | {"url":"http://www.plantengineering.com/single-article/process-controllers-predict-the-future/db45144a26e310197c5ca66c96cbf112.html","timestamp":"2014-04-19T10:50:33Z","content_type":null,"content_length":"83764","record_id":"<urn:uuid:05dfae14-6500-4066-8e86-9149c997689a>","cc-path":"CC-MAIN-2014-15/segments/139822320... |
User Dick Palais
bio website vmm.math.uci.edu
location Univ. of California at Irvine
age 82
visits member for 3 years, 9 months
seen Apr 8 at 22:40
stats profile views 6,377
I'm a Professor at UC Irvine, but spent most of my career at Brandeis. My research... | {"url":"http://mathoverflow.net/users/7311/dick-palais?tab=activity&sort=all&page=3","timestamp":"2014-04-21T01:09:31Z","content_type":null,"content_length":"45450","record_id":"<urn:uuid:5414c79a-b519-406d-9609-d49f458834ee>","cc-path":"CC-MAIN-2014-15/segments/1397609539337.22/warc/CC-MAIN-20140416005219-00248-ip-10-... |
State various uses of dimensional equation ?My posted question is related with Research Methodology subject - Homework Help - eNotes.com
State various uses of dimensional equation ?
My posted question is related with Research Methodology subject
A dimensional equation is a tool used in what is called dimensional analys... | {"url":"http://www.enotes.com/homework-help/state-various-uses-dimensional-equation-185357","timestamp":"2014-04-18T00:20:14Z","content_type":null,"content_length":"25887","record_id":"<urn:uuid:8540cfb8-5750-4edc-9329-af1001bdd368>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00314-... |
100 Doors X Walkthrough and Answers Level 71-81
VN:F [1.9.22_1171]
100 Doors X iPhone and iPad just got updated by 11 levels. The game is now exactly the same for Iphone and Android users. I have to say that these levels were quite hard to figure out. So I am sure
you will be very happy to learn all the tricks and tip... | {"url":"http://www.tttwe.com/tips/100-doors-x-walkthrough-and-answers-level-71-81.htm","timestamp":"2014-04-20T11:07:37Z","content_type":null,"content_length":"33252","record_id":"<urn:uuid:4c1224ea-61d6-4090-834a-c8c469237762>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00321-ip-10... |
Dr. Lisa O. Coulter
Associate Professor of Mathematics
Lisa O. Coulter was born in Wilmington, Del., and grew up in the small city of Salisbury, Md., on the DelMarVa Peninsula. She has three brothers. A first generation college student, Lisa attended
Yale University where she double majored in mathematics and physics a... | {"url":"http://www.stetson.edu/other/faculty/profiles/lisa-coulter.php","timestamp":"2014-04-16T21:54:48Z","content_type":null,"content_length":"13176","record_id":"<urn:uuid:7e744c85-a4b5-4529-a7e5-97b3349cbec6>","cc-path":"CC-MAIN-2014-15/segments/1397609525991.2/warc/CC-MAIN-20140416005205-00020-ip-10-147-4-33.ec2.i... |
On January 2, 2011, the Crossover Band acquires sound equipment... - (solved) | Transtutors
accounting question
On January 2, 2011, the Crossover Band acquires sound equipment for concert performances at a cost of $55,900. The band estimates it will use this equipment for four years, during which time it
anticipates pe... | {"url":"http://www.transtutors.com/questions/accounting-question-109224.htm","timestamp":"2014-04-20T05:43:55Z","content_type":null,"content_length":"78739","record_id":"<urn:uuid:ef7291af-3df8-4bf5-83e7-9e244b09c219>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAIN-20140416005218-00413-ip-10-147-4-33... |
Figuring power dissipation increase w/ heatsink
I did not know that their efficiency varied with temperature - how much/over what temparature range?
Vbe has the same temperature coefficient as a diode, so about -2mV/degreeC. As the junction temperature increases, the bipolar transistor becomes more efficient, so it dis... | {"url":"http://www.physicsforums.com/showthread.php?t=310762","timestamp":"2014-04-21T07:27:22Z","content_type":null,"content_length":"46576","record_id":"<urn:uuid:182e69f5-4dfe-44f6-a72c-e3bfe5867079>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00565-ip-10-147-4-33.ec2.internal.w... |
Mplus Discussion >> Scale unit for count modeling
Jan Ivanouw posted on Monday, November 23, 2009 - 1:29 am
I am sorry for my ignorance, I am not quite sure about scale units in CFA-models when the dependent variables are count variables:
When setting the loading for one indicator = 1 (the default), what scale are
1) t... | {"url":"http://www.statmodel.com/cgi-bin/discus/discus.cgi?pg=prev&topic=23&page=4956","timestamp":"2014-04-16T14:13:05Z","content_type":null,"content_length":"24575","record_id":"<urn:uuid:ff2969b3-fc9a-4388-927c-cc083ad9617c>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00042-ip-1... |
[Numpy-discussion] RFC: add a install_clib numpy.distutils command to install pure C libraries
David Cournapeau david@ar.media.kyoto-u.ac...
Fri Jun 12 05:46:04 CDT 2009
I have finally spent some time so that we can install pure C
libraries using numpy.distutils. With this, one could imagine having a C
library for ... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2009-June/043412.html","timestamp":"2014-04-18T11:18:37Z","content_type":null,"content_length":"3812","record_id":"<urn:uuid:dc245b78-089c-42a1-8556-68b96d69d721>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00228-ip-10-147-4-... |
Chapter 10. Neural Networks
“You can’t process me with a normal brain.” — Charlie Sheen
We’re at the end of our story. This is the last official chapter of this book (though I envision additional supplemental material for the website and perhaps new chapters in the future). We began
with inanimate objects living in... | {"url":"http://natureofcode.com/book/chapter-10-neural-networks/","timestamp":"2014-04-16T07:13:48Z","content_type":null,"content_length":"203947","record_id":"<urn:uuid:b6f97dbb-ea62-4e6d-b000-0d1db8dea5d1>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00396-ip-10-147-4-33.ec2.inter... |
Multiplying Whole Numbers
Performance Task Objectives
• Multiply up to 5-digit numbers by 1-digit numbers
• Multiply two 2-digit numbers
• Find the areas of rectangles and squares
• Estimate products
Sunshine State Standards
• MA.4.G.3.3
• MA.4.A.1.2
• Student recording sheet
• Color tiles
• Paper and... | {"url":"http://fcit.usf.edu/fcat5m/resource/pinellas/multiwhol.htm","timestamp":"2014-04-19T01:55:28Z","content_type":null,"content_length":"5997","record_id":"<urn:uuid:a517dc8f-39cc-4b84-94d2-1b871b97bf98>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00027-ip-10-147-4-33.ec2.intern... |
Burlington, NJ Calculus Tutor
Find a Burlington, NJ Calculus Tutor
...I studied reading and writing under strict, old-school English teachers and professors, which is one reason why my verbal skills exceed those of most English teachers today. I have been
helping students raise their scores on all three SAT section... | {"url":"http://www.purplemath.com/burlington_nj_calculus_tutors.php","timestamp":"2014-04-16T10:49:44Z","content_type":null,"content_length":"24237","record_id":"<urn:uuid:f3b7e70a-968e-4f46-a549-6d3b3027cd28>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00482-ip-10-147-4-33.ec2.int... |
Prove this inequality
October 14th 2008, 05:45 AM #1
Oct 2008
Prove this inequality
$- \sqrt{a ^{2}+b ^{2} } \leqslant a \cdot cos \alpha + b \cdot sin \alpha \leqslant \sqrt{a ^{2}+b ^{2} }$
My solution:
$\begin{cases} - \sqrt{ a^{2}+b^{2} } \leqslant a \cdot cos \alpha +b \cdot sin \alpha \\a \cdot co... | {"url":"http://mathhelpforum.com/trigonometry/53623-prove-inequality.html","timestamp":"2014-04-16T08:06:50Z","content_type":null,"content_length":"33697","record_id":"<urn:uuid:c9625e8b-74f1-428d-be18-df3dc589bd7b>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00586-ip-10-147-4-33.e... |
Eigenvalues of conjugate transpose matrix
September 6th 2009, 03:12 AM #1
Sep 2009
Eigenvalues of conjugate transpose matrix
how do i prove that all the eigenvalues of the product A*A (where A* is the conjugate transpose matrix of A) are real non negative numbers. note A is not necessarily a square matrix ?
... | {"url":"http://mathhelpforum.com/advanced-algebra/100766-eigenvalues-conjugate-transpose-matrix.html","timestamp":"2014-04-16T16:28:06Z","content_type":null,"content_length":"37525","record_id":"<urn:uuid:67cf4017-9c3b-4af1-b692-65da12e37ea6>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-2014041600... |
variance and standard deviation
August 7th 2007, 07:22 AM #1
Nov 2006
variance and standard deviation
Why do we average by divivding by n-1 rather than n in calculating the variance? the formula I am using is s^2=[ sum of (x- X)^2]/(n-1) where X= mean. Thank you very much for your help!
Because you are usin... | {"url":"http://mathhelpforum.com/statistics/17579-variance-standard-deviation.html","timestamp":"2014-04-19T10:00:12Z","content_type":null,"content_length":"39694","record_id":"<urn:uuid:d72b92fd-8dac-4f5f-a38f-6061607a75c5>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00047-ip-10-1... |
Re: st: Joint hypothesis with one-sided alternatives
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Re: st: Joint hypothesis with one-sided alternatives
From "Guillaume Frechette" <gurst1@hotmail.com>
To statalist@hsphsun2.harvard.edu
Subject Re: st: Joint hypothesis with one-sided ... | {"url":"http://www.stata.com/statalist/archive/2002-06/msg00332.html","timestamp":"2014-04-16T07:45:35Z","content_type":null,"content_length":"7205","record_id":"<urn:uuid:bf8b99c4-d51b-4734-8aae-3be426c23f7c>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00524-ip-10-147-4-33.ec2.int... |
Euler angle rotations - Math and Physics
First, rotate alpha around the z axis, then rotate beta around the new y', finally rotate gamma around the new z''.
How would you accomplish this? I know how to do rotations around the X, Y, Z axis, but those are not applicable in this case other than the inital rotation rig... | {"url":"http://www.gamedev.net/topic/649405-euler-angle-rotations/","timestamp":"2014-04-24T06:46:44Z","content_type":null,"content_length":"150901","record_id":"<urn:uuid:bfb15daa-c04e-40e0-8b90-6a8742a705f9>","cc-path":"CC-MAIN-2014-15/segments/1398223205375.6/warc/CC-MAIN-20140423032005-00458-ip-10-147-4-33.ec2.inte... |
What is the minimal degree of a smooth projective embedding of a hyperelliptic curve?
up vote 12 down vote favorite
(partly motivated by this question, but different: Degree of a Variety)
For a hyperelliptic curve $C$ of genus $g$ (over an algebraically closed field of characteristic not two) what is the smallest $d$ f... | {"url":"http://mathoverflow.net/questions/63745/what-is-the-minimal-degree-of-a-smooth-projective-embedding-of-a-hyperelliptic-c/63751","timestamp":"2014-04-18T11:07:47Z","content_type":null,"content_length":"69520","record_id":"<urn:uuid:abf602d2-4bf3-434c-bb3c-9ec5cdfeb283>","cc-path":"CC-MAIN-2014-15/segments/139822... |
How do you sketch a 3d graph in 2d (Triple integration)
February 25th 2011, 10:40 AM
How do you sketch a 3d graph in 2d (Triple integration)
z = y^2
x = -2, x = 3
y = -1, y = 3
Sorry for being a nuisance, but i don't understand how we can find the limits for each integration, as i cant sketch a 3d graph... | {"url":"http://mathhelpforum.com/calculus/172594-how-do-you-sketch-3d-graph-2d-triple-integration-print.html","timestamp":"2014-04-18T18:39:34Z","content_type":null,"content_length":"5615","record_id":"<urn:uuid:f800c5fe-9c4c-4d72-990f-14e5e35b696d>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-2014... |
Instants and Instantaneous Velocity
Harrington, James (2008) Instants and Instantaneous Velocity. [Preprint]
Download (157Kb) | Preview
This paper will argue that the puzzles about instantaneous velocity, and rates of change more generally, are the result of a failure to recognize an ambiguity in the concept of an in... | {"url":"http://philsci-archive.pitt.edu/8392/","timestamp":"2014-04-17T15:31:08Z","content_type":null,"content_length":"29572","record_id":"<urn:uuid:5a3bf40d-fcac-437b-a7a7-62654566ea19>","cc-path":"CC-MAIN-2014-15/segments/1398223203422.8/warc/CC-MAIN-20140423032003-00121-ip-10-147-4-33.ec2.internal.warc.gz"} |
Math? Of Course!
May 13, 2009
Posted by
Some of you have asked whether you’ll be able to use Wolfram|Alpha for challenging math. Of course!
Remember your old friend pi?
Or the power tower?
Or perhaps you’d like to do a little calculus (note that you can click “Show steps” to see how the answer was obtained):
Or explore... | {"url":"http://blog.wolframalpha.com/2009/05/13/math-of-course/","timestamp":"2014-04-20T08:53:01Z","content_type":null,"content_length":"42804","record_id":"<urn:uuid:5693be0d-4ff9-419b-b928-b4083ba88c56>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00431-ip-10-147-4-33.ec2.internal... |
Number Theory and Physics at the Crossroads
Number Theory and Physics at the Crossroads (11w5001)
Arriving Sunday, May 8 and departing Friday May 13, 2011
Victor Batyrev (University of Tuebingen)
Charles Doran (University of Alberta)
Sergei Gukov (California Institute of Technology)
Noriko Yui (Queen's University)
Don... | {"url":"http://www.birs.ca/events/2011/5-day-workshops/11w5001","timestamp":"2014-04-18T18:10:45Z","content_type":null,"content_length":"16700","record_id":"<urn:uuid:f4ff0e26-2092-4010-8a05-0d3097ba38c3>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.7/warc/CC-MAIN-20140416005215-00129-ip-10-147-4-33.ec2.internal.... |
Posts by
Total # Posts: 43
A small hole in the wing of a space shuttle requires a 12.8cm^2 patch. What is the patch's area in square kilometers (km^2)? if the patching material costs NASA 3.21/in^2, what is the cost of the
College Physics
An electron travels at a speed of 0.700c. What is its kinetic and total energy? ... | {"url":"http://www.jiskha.com/members/profile/posts.cgi?name=Lanise","timestamp":"2014-04-17T22:13:00Z","content_type":null,"content_length":"19294","record_id":"<urn:uuid:72b22b42-7935-43f1-b99a-90b201971e03>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00439-ip-10-147-4-33.ec2.int... |
Finding the lowest cost set of disjoint paths using all nodes in a directed graph?
up vote 0 down vote favorite
I have a directed graph with edges connecting nodes representing costs.
I wish to find the set of paths which -go from node 'start' to node 'end' -are node-disjoint (except for the start and end node) (i.e. e... | {"url":"http://mathoverflow.net/questions/109893/finding-the-lowest-cost-set-of-disjoint-paths-using-all-nodes-in-a-directed-grap?sort=oldest","timestamp":"2014-04-20T13:44:24Z","content_type":null,"content_length":"60283","record_id":"<urn:uuid:b37a4f6f-03bf-4ea6-ae9f-628e5cad8870>","cc-path":"CC-MAIN-2014-15/segments... |
Jericho, NY Math Tutor
Find a Jericho, NY Math Tutor
...I have taught the game to more than 20 students; I have gotten a few of them good enough to be competitive with me. Bottom line: I'm a good chess player, with a fair share of experience
teaching the game, and a lot of experience teaching 1 on 1. Wrestling: I a... | {"url":"http://www.purplemath.com/Jericho_NY_Math_tutors.php","timestamp":"2014-04-21T02:09:25Z","content_type":null,"content_length":"23957","record_id":"<urn:uuid:604132e4-f785-45b6-821c-2bace358cf9c>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00585-ip-10-147-4-33.ec2.internal.w... |
Binomial Theorem - Questions
November 24th 2008, 04:01 PM #1
Junior Member
Nov 2008
Binomial Theorem - Questions
32. For the expansion of (k+t)^22, state:
a) the number of terms (1 mark)
b) the degree of each term (1 mark)
c) the first four terms in the expansion, without coefficients (2 marks)
... | {"url":"http://mathhelpforum.com/math-topics/61447-binomial-theorem-questions.html","timestamp":"2014-04-23T18:22:16Z","content_type":null,"content_length":"45675","record_id":"<urn:uuid:93a5d0e4-1519-4470-b298-31d7288f77ac>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00383-ip-10-14... |