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Evaluate 9P4. 9 362,880 126 3,024
• one year ago
• one yea... | {"url":"http://openstudy.com/updates/514ca10ae4b0d02faf5a9677","timestamp":"2014-04-20T03:37:20Z","content_type":null,"content_length":"34656","record_id":"<urn:uuid:c8604a55-e53a-4c46-8469-5f1fb31c309f>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00442-ip-10-147-4-33.ec2.internal.... |
Physics Forums - Require help
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Require help
Require help
In an investigation of a physics problem, I ran into the following equation:
d^2(y)/(dt)^2 = k * y * (y^2 + c)^-1.5
I know how to solve separable first order differential equations but this one seems to be beyond me. Assistance?
CPL.Luke Dec12-06 01:30 PM
h... | {"url":"http://www.physicsforums.com/printthread.php?t=147835","timestamp":"2014-04-16T16:16:03Z","content_type":null,"content_length":"6521","record_id":"<urn:uuid:438eff18-c842-4e71-ac29-afeba184014c>","cc-path":"CC-MAIN-2014-15/segments/1397609524259.30/warc/CC-MAIN-20140416005204-00016-ip-10-147-4-33.ec2.internal.w... |
dot plot
Definition of Dot plot
● In a Dot Plot, a set of data is represented by using dots over a number line.
More about Dot plot
• The number of dots over the number line tells the value of the data points.
Example of Dot plot
• A dot plot is as shown in the figure.
The frequency of the data points is repr... | {"url":"http://www.icoachmath.com/math_dictionary/dot_plot.html","timestamp":"2014-04-17T09:35:45Z","content_type":null,"content_length":"8196","record_id":"<urn:uuid:d7181abc-4ec9-444a-90f3-d6fc8b034d71>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00525-ip-10-147-4-33.ec2.internal... |
West Fort Lee, NJ Algebra 2 Tutor
Find a West Fort Lee, NJ Algebra 2 Tutor
...Basically, in my time working with students, I have become a jack of all trades, and I love it! I succeed as a tutor because I have a great rapport with students of all ages. I am high energy,
and do not believe that tutor has to be borin... | {"url":"http://www.purplemath.com/west_fort_lee_nj_algebra_2_tutors.php","timestamp":"2014-04-16T04:25:04Z","content_type":null,"content_length":"24321","record_id":"<urn:uuid:5684009b-d677-43c5-8c05-0ce353be44ba>","cc-path":"CC-MAIN-2014-15/segments/1398223206770.7/warc/CC-MAIN-20140423032006-00119-ip-10-147-4-33.ec2.... |
Re: finding all dominator trees
Martin Ward <martin@gkc.org.uk>
5 Dec 2006 06:20:50 -0500
From comp.compilers
| List of all articles for this month |... | {"url":"http://compilers.iecc.com/comparch/article/06-12-039","timestamp":"2014-04-18T15:47:18Z","content_type":null,"content_length":"6238","record_id":"<urn:uuid:3c2352cc-35c2-4bea-bf02-51d1b28b78a1>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00459-ip-10-147-4-33.ec2.internal.wa... |
Hunting Serial Killers
“Tonight’s the Night”
A large volume of research goes into the psychological and behavioral analysis of criminals. In particular, serial criminals hold a special place in the imagination and nightmares of the general
public (at least, American public). Those criminals with the opportunity to beco... | {"url":"http://jeremykun.com/2011/07/20/serial-killers/","timestamp":"2014-04-16T10:46:31Z","content_type":null,"content_length":"106456","record_id":"<urn:uuid:09099aed-ebe9-4689-9db3-adf90f1f53fe>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00073-ip-10-147-4-33.ec2.internal.warc.... |
algebra related word problem
April 24th 2009, 09:40 AM #1
Nov 2008
algebra related word problem
A club consists of 8 seniors, 7 juniors, and 4 sophomores. A subcommittee consisting of 3 seniors, 2 juniors, and 1 sophomore will be chosen. How many different such subcommittees are there?
Order does not appear... | {"url":"http://mathhelpforum.com/algebra/85448-algebra-related-word-problem.html","timestamp":"2014-04-19T14:08:14Z","content_type":null,"content_length":"32678","record_id":"<urn:uuid:1cf1cc61-fa35-4af9-a816-d960423c3822>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00520-ip-10-147... |
Three Houses, Three Utilities
Date: 07/15/99 at 01:43:02
From: Chris
Subject: Lines, etc.
I know that you have answered this before: the question about the
three houses and the three utilities (gas, electricity, water).
Well, the guy who gave me this puzzle says there is a way of solving
it in 2D, without any tricks. H... | {"url":"http://mathforum.org/library/drmath/view/55165.html","timestamp":"2014-04-19T17:20:56Z","content_type":null,"content_length":"7098","record_id":"<urn:uuid:fdaf6674-7aa3-434e-9ce1-b9b963c92f82>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00439-ip-10-147-4-33.ec2.internal.war... |
more CHEM proofreading
Posted by jerson on Sunday, April 27, 2008 at 8:06pm.
for this question A sample of air has a volume of 140.0 mL at 67 degrees celcius. At what temperature would its volume 50.0 mL at constant pressure
I did
140.0 ml... 67+273=340
T2... 50.0
This question i don't get because of the scientific not... | {"url":"http://www.jiskha.com/display.cgi?id=1209341160","timestamp":"2014-04-19T21:40:48Z","content_type":null,"content_length":"13086","record_id":"<urn:uuid:dd03c36b-5982-45d7-91f3-f33a999a3235>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00661-ip-10-147-4-33.ec2.internal.warc.g... |
Spring Valley, CA Algebra Tutor
Find a Spring Valley, CA Algebra Tutor
...I began tutoring math in high school, volunteering to assist an Algebra 1 class for 4 hours per week. Today I have hundreds of hours of experience, with the majority in Algebra and Statistics,
and I would be comfortable well into college math... | {"url":"http://www.purplemath.com/Spring_Valley_CA_Algebra_tutors.php","timestamp":"2014-04-16T04:38:45Z","content_type":null,"content_length":"24146","record_id":"<urn:uuid:e7feb70c-7f96-4764-b87f-44c8935b4aa0>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00417-ip-10-147-4-33.ec2.in... |
User Abhinav Kumar
bio website web.mit.edu/abhinavk/www
visits member for 4 years, 4 months
seen Apr 9 at 22:20
stats profile views 1,021
28 reviewed Approve suggested edit on On a particular case of the ``Tumura-Hayman" theorem :
30 reviewed Reject suggested edit on Cohomology after ... | {"url":"http://mathoverflow.net/users/2698/abhinav-kumar?tab=activity","timestamp":"2014-04-20T13:42:55Z","content_type":null,"content_length":"45920","record_id":"<urn:uuid:99bf03ab-c790-4d02-b06a-467983e3e622>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-00214-ip-10-147-4-33.ec2.in... |
ANOVA Diagnostics Module. Stats Design & Analysis Web Guide (DAWG), University of Tennessee
Check for outliers, equal variance, normality, and model validity
You just ran your SAS analysis; you are almost done.
Now you have to examine your dataset for three potential problems in your data. If one or more of these occur... | {"url":"http://dawg.utk.edu/diag/diagnostics.htm","timestamp":"2014-04-18T20:51:25Z","content_type":null,"content_length":"19585","record_id":"<urn:uuid:18a321d6-11b5-4b96-b43a-d895aba96da4>","cc-path":"CC-MAIN-2014-15/segments/1397609535095.9/warc/CC-MAIN-20140416005215-00206-ip-10-147-4-33.ec2.internal.warc.gz"} |
September 26th 2006, 11:58 PM
Can someone help me on the following questions
If loge (a/b) = kl/2c make a the subject of the formula. Also calculate the value of a when b = 4.16, k = 3.68, 1 = 11.41 and c = 9.23
Thanks Alison
September 27th 2006, 02:44 AM
The symbol for "log base e" is "ln" so I'm going... | {"url":"http://mathhelpforum.com/algebra/5866-logritham-print.html","timestamp":"2014-04-18T04:35:33Z","content_type":null,"content_length":"4353","record_id":"<urn:uuid:42be0bd9-8be3-40a2-a9be-b3417733fa56>","cc-path":"CC-MAIN-2014-15/segments/1397609532480.36/warc/CC-MAIN-20140416005212-00260-ip-10-147-4-33.ec2.inter... |
9th grade math word problems
Posted by Angel on Thursday, April 7, 2011 at 4:51pm.
i never can do word problems....please help... i got 7 of them.....these are word for word
Larry is 8 yrs older than his sister.In 3 yrs, hr will be twice as old as she will be then.how old is each now?
Jennifer is 6 yrs older than Sue. ... | {"url":"http://www.jiskha.com/display.cgi?id=1302209482","timestamp":"2014-04-21T08:09:41Z","content_type":null,"content_length":"10044","record_id":"<urn:uuid:ecc1ced4-5ba2-45d0-896f-ba1c7c5b8b18>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00527-ip-10-147-4-33.ec2.internal.warc.g... |
steepest descent - Numerical Recipes Forum
Originally Posted by
What is behind the smilies...
For people trying to read code that was posted without code tags:
Pretend you are going to respond to the post (click the
button at the lower right).
When the response edit window opens, copy/paste the problematic lines to you... | {"url":"http://www.nr.com/forum/showthread.php?t=745","timestamp":"2014-04-19T06:53:16Z","content_type":null,"content_length":"51829","record_id":"<urn:uuid:dec4217e-a3c9-4abc-bcc0-942a63ae17d4>","cc-path":"CC-MAIN-2014-15/segments/1398223207046.13/warc/CC-MAIN-20140423032007-00039-ip-10-147-4-33.ec2.internal.warc.gz"} |
The Midpoint and Distance Formulas in 3D - Problem 3
The distance formula for vectors can be used to derive equations. Let's take a look at an example. It says find an equation that must be satisfied by the points equidistant from O, the origin, and
point A; 3, 2, 6.
So I've drawn a little picture here. Here is the ori... | {"url":"https://www.brightstorm.com/math/precalculus/vectors-and-parametric-equations/the-midpoint-and-distance-formulas-in-3d-problem-3/","timestamp":"2014-04-17T04:15:49Z","content_type":null,"content_length":"77556","record_id":"<urn:uuid:fbdfacc9-8674-4a53-bcba-4117b3d39067>","cc-path":"CC-MAIN-2014-15/segments/139... |
normal distribution
August 4th 2010, 05:24 PM #1
Mar 2010
normal distribution
The lengths of 100 pipes have a normal distribution with a mean of 102.4 inches and a standard deviation of 0.2 inch. If one of the pipes measures exactly 102.1 inches, what percentile does its
length lie in?
Thanks for the he... | {"url":"http://mathhelpforum.com/statistics/152807-normal-distribution.html","timestamp":"2014-04-20T14:43:25Z","content_type":null,"content_length":"33787","record_id":"<urn:uuid:982be9ab-4dc8-43a5-bbdb-9b8f9155db4f>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00220-ip-10-147-4-33... |
Vinnings, GA Math Tutor
Find a Vinnings, GA Math Tutor
...I solved my own problem by going to study hall and help others in chemistry, which I did for at least a year. The school gave me an award for my efforts I did that year. When I tutored someone
in chemistry, I devoted my time to one person at a time to focus ... | {"url":"http://www.purplemath.com/Vinnings_GA_Math_tutors.php","timestamp":"2014-04-18T19:15:17Z","content_type":null,"content_length":"24056","record_id":"<urn:uuid:ed461333-0926-4f4e-afc3-88580a59700d>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00436-ip-10-147-4-33.ec2.internal.w... |
Puzzles For Kids
- Lots of Puzzle Fun!
Try these fun puzzles for kids - you'll find the answers at the end of the page.
Puzzles for kids - Puzzle # 1
Dime Disappointment
A girl named Tracy collected old coins. She knew that some old coins were worth a lot of money. But she did not know if any of her coins were valuable... | {"url":"http://www.kids-crafts-creations.com/puzzlesforkids.html","timestamp":"2014-04-17T03:48:07Z","content_type":null,"content_length":"20049","record_id":"<urn:uuid:40fe30ef-6b66-4a0b-abbc-39b2d9e9a5cb>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00350-ip-10-147-4-33.ec2.intern... |
Calculate Mixture
[calculate mixture ] [search_but]
Business Desktop Enhancements Drivers Games Home & Education HTML Info Management Internet MP3 and Audio Multimedia Programming Utilities
Quick Slide Show Online Desktop Presenter ThunderSite Free Web Editor Agama Web Menus Check Printing Software 2000 Tagged Friend... | {"url":"http://www.bluechillies.com/software/calculate-mixture.html","timestamp":"2014-04-19T09:26:07Z","content_type":null,"content_length":"57710","record_id":"<urn:uuid:f175b602-cc2f-4369-ae33-55b80f98121d>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00385-ip-10-147-4-33.ec2.inte... |
Steam (Vapor) Power Cycle (Rankine Cycle) Examples - TEST Tutorial
Launch the open cycle daemon located at the page TEST. Daemons. Systems. Open. Steady. Specific. PowerCycles. PhaseChange.
Let us set up the cycle as follows: Device-A: isentropic pumping from State-1 to State-2 ; Device-B : constant pressure boiler wit... | {"url":"http://www1.ceit.es/asignaturas/termo/test/testcenter/testhome/Test/intro/exOpenVaporCycleP.html","timestamp":"2014-04-20T16:03:03Z","content_type":null,"content_length":"26860","record_id":"<urn:uuid:c2a48399-49b8-4e23-a7a0-d3f87c0ca3b3>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-2014042... |
Embedding Leveled Hypercube Algorithms into Hypercubes
When a leveled hypercube algorithm (one dimension used at a time) is mapped in the straightforward way into a hypercube in which all edges are useable at once, most of the host machine's bandwidth is
unused. This paper shows how to construct embeddings which better... | {"url":"http://research.microsoft.com/en-us/um/people/dbwilson/embed/","timestamp":"2014-04-19T18:57:03Z","content_type":null,"content_length":"3026","record_id":"<urn:uuid:db260c77-7456-434a-961b-1084b6386a4e>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00185-ip-10-147-4-33.ec2.int... |
The Wikipedia Poker page has numbers on the various standard poker hands, but I've been tasked with scoring odd ball hands and hands with wild cards, and furthermore, with validating my scoring
logic. I have test runs, representing all 52-choose-5 [footnote 1] possible hands run through the hand recognition logic (wild... | {"url":"http://use.perl.org/use.perl.org/_scrottie/journal/38497.html","timestamp":"2014-04-21T12:40:21Z","content_type":null,"content_length":"36740","record_id":"<urn:uuid:e9469880-7eb4-4458-86ea-49fa72f89b57>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00276-ip-10-147-4-33.ec2.i... |
Stellar Numbers Math Ib Sl Portfolio Investigation Mathematics Essay
Mathematics is a subject with simple purpose, which is to find and understand patterns and try to apply the patterns to real life situation. In this investigation however, we are dealing with
sequences which in this specific case are not applicable to... | {"url":"http://www.ukessays.com/essays/biology/stellar-numbers-math-ib-sl-portfolio-investigation-mathematics-essay.php","timestamp":"2014-04-17T12:37:05Z","content_type":null,"content_length":"25289","record_id":"<urn:uuid:4fee759a-2461-4b03-a3a1-3f48f3b7684c>","cc-path":"CC-MAIN-2014-15/segments/1398223206147.1/warc/... |
11 projects tagged "Mathematics"
DigitizeIt digitizes scanned graphs and charts. Graphs can be loaded in nearly all common image formats (including gif, tiff, jpeg, bmp, png, psd, pcx, xbm, xpm, tga, pct), pasted from the clipboard,
or imported via a screenshot. Digitizing of line and scatter plots occurs automatically... | {"url":"http://freecode.com/tags/mathematics?page=1&sort=created_at&with=182&without=","timestamp":"2014-04-16T06:54:06Z","content_type":null,"content_length":"74004","record_id":"<urn:uuid:0ee1c06c-d983-4abc-870d-581936cb44b7>","cc-path":"CC-MAIN-2014-15/segments/1397609521512.15/warc/CC-MAIN-20140416005201-00060-ip-1... |
Re: Comments on 2.6 "Multiple Matches" (CR 6 Apr 2006)
From: Seaborne, Andy <andy.seaborne@hp.com> Date: Mon, 24 Jul 2006 10:03:59 +0100 Message-ID: <44C48CFF.6090600@hp.com> To: Fred Zemke <fred.zemke@oracle.com> CC: public-rdf-dawg@w3.org
Fred Zemke wrote:
> 2.6 Multiple matches
> First sentence: "The results of a qu... | {"url":"http://lists.w3.org/Archives/Public/public-rdf-dawg/2006JulSep/0028.html","timestamp":"2014-04-20T03:38:34Z","content_type":null,"content_length":"11953","record_id":"<urn:uuid:bde28d0c-413e-4ae3-9baf-da89c2b64e69>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00389-ip-10-147... |
[Numpy-discussion] numpy type mismatch
Benjamin Root ben.root@ou....
Fri Jun 10 14:50:32 CDT 2011
Came across an odd error while using numpy master. Note, my system is
>>> import numpy as np
>>> type(np.sum([1, 2, 3], dtype=np.int32)) == np.int32
>>> type(np.sum([1, 2, 3], dtype=np.int64)) == np.int64
>>> type(np.sum(... | {"url":"http://mail.scipy.org/pipermail/numpy-discussion/2011-June/056773.html","timestamp":"2014-04-19T12:50:26Z","content_type":null,"content_length":"3712","record_id":"<urn:uuid:53dc24bf-ad0d-4e83-b69a-9775b575805d>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00345-ip-10-147-4-... |
How can I see that the slice of a presheaf category is equivalent to the presheaf category of the category of elements?
up vote 3 down vote favorite
Let $\mathcal{C}$ be a small category and $P$ a presheaf on $\mathcal{C}$. Then there is an equivalence $$\widehat{\mathcal{C}} / P \cong \widehat{\int_{\mathcal{C}}} P$$ ... | {"url":"http://mathoverflow.net/questions/89635/how-can-i-see-that-the-slice-of-a-presheaf-category-is-equivalent-to-the-preshea?sort=oldest","timestamp":"2014-04-17T07:09:42Z","content_type":null,"content_length":"55358","record_id":"<urn:uuid:fb3b4e7b-1cff-40dc-9d95-06830722ab8d>","cc-path":"CC-MAIN-2014-15/segments/... |
excel, data & standard deviation Canceler?
October 18th, 2011, 05:59 PM
Join Date: Apr 2006
Executive Member
Posts: 5,141
Originally Posted by
blackjack avenger
A point graph you plot the days in order of occurrence and then connect the dots?
so.... i wasn't doin it right t... | {"url":"http://www.blackjackinfo.com/bb/showthread.php?t=23698&page=2","timestamp":"2014-04-20T13:21:12Z","content_type":null,"content_length":"92208","record_id":"<urn:uuid:c8bb75c2-5712-4316-a09d-5dc6a96192a0>","cc-path":"CC-MAIN-2014-15/segments/1397609538787.31/warc/CC-MAIN-20140416005218-00494-ip-10-147-4-33.ec2.i... |
y=f(x) transformation
February 13th 2013, 12:50 PM
y=f(x) transformation
1. describe how y=f(x) is transformed by each of the following:
a) y = -f(x+2) - 5
b) y = f(-x) + 5
if some could please help! Thank you in advanced !
February 13th 2013, 01:00 PM
Re: y=f(x) transformation
What does swapping x ... | {"url":"http://mathhelpforum.com/advanced-applied-math/213068-y-f-x-transformation-print.html","timestamp":"2014-04-23T16:18:53Z","content_type":null,"content_length":"4288","record_id":"<urn:uuid:8e790d39-747a-4daa-801d-233a2e7a3f9f>","cc-path":"CC-MAIN-2014-15/segments/1398223202774.3/warc/CC-MAIN-20140423032002-0031... |
newbie: general overview wanted [Archive] - OpenGL Discussion and Help Forums
i'm just starting out trying to learn ogl but i need to know the grand scheme of things before this stuff clicks for me. the following is my thinking. please help me clear it up:
when you open a window ready for OpenGL to draw in it, you spe... | {"url":"http://www.opengl.org/discussion_boards/archive/index.php/t-129753.html","timestamp":"2014-04-21T02:52:53Z","content_type":null,"content_length":"6478","record_id":"<urn:uuid:058e0ef4-97e4-4fd8-8aa8-37a56d484307>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00054-ip-10-147-4... |
A Full Day of Grading
Teachers, TAs, and professors love to complain about the amount of grading they have. But how much is that, exactly? I've seen
that say assessments and assessment-related activities (I imagine this includes creation, proctoring, and grading) take up 1/3 - 1/2 of a teacher's time. I certainly belie... | {"url":"http://kdphd.blogspot.com/2011/02/full-day-of-grading.html","timestamp":"2014-04-19T19:53:54Z","content_type":null,"content_length":"76518","record_id":"<urn:uuid:efba5894-6940-4fca-85ac-72afcd8b82f5>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00484-ip-10-147-4-33.ec2.inte... |
Two Stage Least Squares
August 27th 2011, 10:47 PM #1
Junior Member
Nov 2009
Two Stage Least Squares
You are given a dependent variable y, and independent variable x such that the regression would be ( x and y are endogenous):
$y=\beta_{0} + \beta_{1}x + \epsilon$
There is the possibility that the coeff... | {"url":"http://mathhelpforum.com/advanced-statistics/186831-two-stage-least-squares.html","timestamp":"2014-04-19T13:11:44Z","content_type":null,"content_length":"32600","record_id":"<urn:uuid:c24d3584-9cce-4be7-a9ce-6bcf1b304deb>","cc-path":"CC-MAIN-2014-15/segments/1397609537186.46/warc/CC-MAIN-20140416005217-00327-i... |
Indefinite integral of (x+(1/x))^4
September 13th 2012, 11:00 PM #1
Sep 2012
Hello, I'm Fahad and I'm new here
I'm here to get help with simple math problems for my IGCSES
Plese help me.
The following math is from the binomial expansions part of my syllabus:
⌠ (x+(1/x))^4
Please show your wo... | {"url":"http://mathhelpforum.com/new-users/203431-indefinite-integral-x-1-x-4-a.html","timestamp":"2014-04-19T00:04:31Z","content_type":null,"content_length":"40672","record_id":"<urn:uuid:43d1fc29-3c9f-431b-aa94-b766a5d3966d>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00239-ip-10-... |
Products of matrices of a certain form
up vote 2 down vote favorite
Are $n \times n$ matrices of the form $$\pmatrix{1&1&1&1 \cr x&1&1&1 \cr x&x&1&1 \cr x&x&x&1}$$ studied anywhere? I am interested in the structure of the matrix obtained by multiplying a bunch of
these together.
matrices linear-algebra co.combinatorics... | {"url":"http://mathoverflow.net/questions/127974/products-of-matrices-of-a-certain-form","timestamp":"2014-04-20T18:56:33Z","content_type":null,"content_length":"48417","record_id":"<urn:uuid:9fc1fab1-ceda-4240-89a5-1686bc4cbbac>","cc-path":"CC-MAIN-2014-15/segments/1397609539066.13/warc/CC-MAIN-20140416005219-00099-ip... |
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Topic: It is shown that ZFC is inconsistent
Replies: 0
byron It is shown that ZFC is inconsistent... | {"url":"http://mathforum.org/kb/thread.jspa?threadID=2433204","timestamp":"2014-04-17T09:51:37Z","content_type":null,"content_length":"15522","record_id":"<urn:uuid:cdc3baa1-a151-4f4e-9a51-4d67735623e0>","cc-path":"CC-MAIN-2014-15/segments/1398223210034.18/warc/CC-MAIN-20140423032010-00060-ip-10-147-4-33.ec2.internal.w... |
On Preserving: Essays on Preservationism and Paraconsistent Logic
This volume is an announcement that an important school of philosophical logic is flourishing in Canada. The essays in On Preserving offer an original conception of logic called preservationism and
studies of an accompanying inference relation called for... | {"url":"http://ndpr.nd.edu/news/24157/?id=17405","timestamp":"2014-04-20T03:09:49Z","content_type":null,"content_length":"35544","record_id":"<urn:uuid:441fe2e5-e02f-4a84-a4de-f53c2fb9c660>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00074-ip-10-147-4-33.ec2.internal.warc.gz"} |
PredictionSIGNIFICANCE OF THE PROJECT
IDENTIFYING FORESHOCKS BY THEIR SENSITIVITY TO REMOTE TRIGGERING
Grant Number: 1434-HQ-97-GR-03078
... | {"url":"http://www.geo.brown.edu/faculty/ttullis/prediction_fy98.htm","timestamp":"2014-04-19T11:57:37Z","content_type":null,"content_length":"18645","record_id":"<urn:uuid:4da3e124-aa5b-4b2f-9f5d-3e8a3ff5144b>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00444-ip-10-147-4-33.ec2.in... |
sdrt – Macros for Segmented Discourse Representation Theory
The package provides macros to produce the ‘Box notation’ of SDRT (and DRT), to draw trees representing discourse relations, and finally to have an easy access to various
mathematical symbols used in that theory, mostly with automatic ma... | {"url":"http://www.ctan.org/pkg/sdrt","timestamp":"2014-04-18T23:49:24Z","content_type":null,"content_length":"5141","record_id":"<urn:uuid:218c1396-d1ae-4a37-a7e9-a413feeaae75>","cc-path":"CC-MAIN-2014-15/segments/1397609535535.6/warc/CC-MAIN-20140416005215-00377-ip-10-147-4-33.ec2.internal.warc.gz"} |
Equirectangular Panini
From PanoTools.org Wiki
(Difference between revisions)
(Created page with 'The projection labelled "equirectangular Panini" in libpano13 is the standard Newer edit →
Pannini projection, which is the cylindrical analogue of the stereographic projection. The "Panini
Line 1: ... | {"url":"http://wiki.panotools.org/index.php?title=Equirectangular_Panini&diff=12386&oldid=12385","timestamp":"2014-04-23T09:42:36Z","content_type":null,"content_length":"18217","record_id":"<urn:uuid:5443fa6b-d24f-4f8c-9a77-492b0dc5d8fc>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-0... |
Bell's derivation; socks and Jaynes
I'm pretty much a spectator in these discussions, but I'd like to point out that there was a long thread here about three years ago, about Jaynes's objections to Bell:
This was before you joined PF, so you may not have seen this. It may or may not fit in with the direction you were p... | {"url":"http://www.physicsforums.com/showthread.php?p=3785565","timestamp":"2014-04-20T08:33:09Z","content_type":null,"content_length":"92693","record_id":"<urn:uuid:b47ce418-2c55-48a4-9f4b-6d37df99084f>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00067-ip-10-147-4-33.ec2.internal.w... |
Discrete Math
On-line Resources: Discrete Math
Think about our world and name some things that can be counted; the number of pixels in an image, the votes cast in an election, the number of fingers on your hand, the number of different ways in
which a network can be traversed. From a mathematical perspective, in each o... | {"url":"http://commons.esc.edu/smatresources/category/math/discrete-math/","timestamp":"2014-04-17T21:32:05Z","content_type":null,"content_length":"55707","record_id":"<urn:uuid:458e7497-018d-4e9a-9e9f-bc876bd6922f>","cc-path":"CC-MAIN-2014-15/segments/1397609532128.44/warc/CC-MAIN-20140416005212-00361-ip-10-147-4-33.e... |
A few homework questions I need help on =)
January 24th 2010, 08:10 AM
A few homework questions I need help on =)
I'm not very good at math and these questions are either stumping me or I don't remember what the teacher said. I don't need the answer spelled out or anything just some instructions on how to
actua... | {"url":"http://mathhelpforum.com/trigonometry/125174-few-homework-questions-i-need-help-print.html","timestamp":"2014-04-24T10:11:30Z","content_type":null,"content_length":"11451","record_id":"<urn:uuid:a271a632-3fb2-4bf6-bc80-852fe69265c9>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-201404230320... |
The main module, exporting types, utility functions, and fuse and connect operators.
The three core types to this package are Source (the data producer), Sink (the data consumer), and Conduit (the data transformer). For all three types, a result will provide the next value to be
used. For example, the Open constructor ... | {"url":"http://hackage.haskell.org/package/conduit-0.3.0/docs/Data-Conduit.html","timestamp":"2014-04-19T22:06:36Z","content_type":null,"content_length":"85415","record_id":"<urn:uuid:3d275e76-8872-4d61-ab02-74f7952b5cab>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00064-ip-10-147-... |
Richard A. Mollin, Fundamental Number Theory with Applications, Second Edition
Richard A. Mollin, Fundamental Number Theory with Applications, Second Edition
C..n & H..C 2/ed (2-2008) | PDF | 384 pages | ISBN:
| 6.2Mb
An update of the most accessible introductory number theory text available, Fundamental Number Theor... | {"url":"http://www.ebookl.com/708838-richard-mollin-fundamental-number-theory-applications-second-edition","timestamp":"2014-04-19T05:40:46Z","content_type":null,"content_length":"43256","record_id":"<urn:uuid:8cb93066-b164-46f8-adcf-887c9e9ec951>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140... |
Trigonometric Functions and Their Graphs:
The Sine and Cosine (page 1 of 3)
Sections: The sine and cosine, The tangent, The co-functions
At first, trig ratios related only to right triangles. Then you learned how to find ratios for any angle, using all four quadrants. Then you learned about the unit circle, in which th... | {"url":"http://www.purplemath.com/modules/printtrig.cgi?path=/modules/triggrph.htm","timestamp":"2014-04-17T09:35:34Z","content_type":null,"content_length":"10596","record_id":"<urn:uuid:8402259d-a96b-44f9-bb43-8308488f4559>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00120-ip-10-1... |
Course Information
Text Book
Main course book: An Introduction to Mechanics, by Daniel Kleppner and Robert J. Kolenkow, McGraw-Hill International Editions (Sections of the book that are part of the course are indicated below)
Supplementary text book for additional reading: Classical Mechanics, by John R. Taylor
Old Exa... | {"url":"http://www.fysik.su.se/~fawad/mechanics.html","timestamp":"2014-04-19T11:58:55Z","content_type":null,"content_length":"9969","record_id":"<urn:uuid:5693bc91-2f34-4858-a829-99ce96b6227f>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00571-ip-10-147-4-33.ec2.internal.warc.gz"} |
Stanford, CA Geometry Tutor
Find a Stanford, CA Geometry Tutor
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math concepts. I have been working with students specifically... | {"url":"http://www.purplemath.com/Stanford_CA_Geometry_tutors.php","timestamp":"2014-04-21T13:19:36Z","content_type":null,"content_length":"24088","record_id":"<urn:uuid:4ec69d3b-4e78-4372-934f-3c0c3065d591>","cc-path":"CC-MAIN-2014-15/segments/1398223202457.0/warc/CC-MAIN-20140423032002-00129-ip-10-147-4-33.ec2.intern... |
General covariance
Yes, I think the quantum spin-2 way is the best, since if one formulates GR as field on flat spacetime, then there is a flat spacetime which is clearly not background independent.
Again, it depends on definitions. If you are going by the definitions that Ben Niehoff for instance is using above, then ... | {"url":"http://www.physicsforums.com/showthread.php?p=4200198","timestamp":"2014-04-19T07:28:25Z","content_type":null,"content_length":"55916","record_id":"<urn:uuid:ba136456-308d-4579-82aa-aef43bca5f62>","cc-path":"CC-MAIN-2014-15/segments/1397609536300.49/warc/CC-MAIN-20140416005216-00146-ip-10-147-4-33.ec2.internal.... |
On most systems, programmers of high level languages have an advantage over assembly language programmers in that a lot of the nitty gritty detail work has been done for them by what ever compiler or
interpretter they re using. An example of this is in the outputting of numbers. High level language programmers usually ... | {"url":"http://www.mactech.com/articles/mactech/Vol.03/03.11/NumberFormat/index.html","timestamp":"2014-04-19T22:45:37Z","content_type":null,"content_length":"93051","record_id":"<urn:uuid:fc4b1085-4be0-4af3-9811-ff65a8a46725>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00222-ip-10... |
The 61st Carnival of Mathematics
Today is a big day! Not only is it the first day of the new year but it’s also the first day of a new decade! In addition to all of that it is also time for the 61st Carnival of Mathematics and
this one has shaped up to be a great one thanks to the growing army of carnival contributo... | {"url":"http://www.walkingrandomly.com/?p=2113","timestamp":"2014-04-19T01:48:38Z","content_type":null,"content_length":"54923","record_id":"<urn:uuid:711d968a-498b-4d64-945b-d5aa582da419>","cc-path":"CC-MAIN-2014-15/segments/1397609535745.0/warc/CC-MAIN-20140416005215-00298-ip-10-147-4-33.ec2.internal.warc.gz"} |
Glen Burnie Algebra 1 Tutor
...If I find that a student has missed a fundamental concept in the past, I go back and address it. I also try my best so that I am very flexible in scheduling and meet student’s demands. So far
for the last fourteen months, I have been very successful in one-on-one tutoring and have man... | {"url":"http://www.purplemath.com/glen_burnie_algebra_1_tutors.php","timestamp":"2014-04-21T02:36:14Z","content_type":null,"content_length":"24124","record_id":"<urn:uuid:d48c842a-da84-4888-97a5-430e8453ae9b>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00663-ip-10-147-4-33.ec2.inte... |
Solving the Cubic with Cardano - Aspects of Abbaco Mathematics
Aspects of Abbaco Mathematics
To understand the abbaco mathematics used by Cardano, we have to step back and look at the medieval tradition of abbaco schools and their masters. Though the subject is a fascinating and deep one,
there is one particular aspect... | {"url":"http://www.maa.org/publications/periodicals/convergence/solving-the-cubic-with-cardano-aspects-of-abbaco-mathematics?device=mobile","timestamp":"2014-04-19T23:16:35Z","content_type":null,"content_length":"27933","record_id":"<urn:uuid:c24b02aa-41cf-49ff-8a1c-6e8f188ce5a4>","cc-path":"CC-MAIN-2014-15/segments/13... |
George S. Fishman
These C-languange programs can be used to solve exercises in this book. cndev.c,
Bruec.c, and Pruec.c all use the pseudorandom number generator in rng_afm.c.
rng_afm.c For the pseudorandom number generator known as the Mersenne twister,
MT19937, this C-language program provides a means for loading se... | {"url":"http://www.unc.edu/~gfish/fcmc.html","timestamp":"2014-04-21T04:57:13Z","content_type":null,"content_length":"4422","record_id":"<urn:uuid:fc6647b6-535f-4a2f-8008-eaef6aa3aeb7>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00605-ip-10-147-4-33.ec2.internal.warc.gz"} |
Math Forum Discussions
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Topic: Interesting trivia - anybody has a different answer than I keep getting - zero
Replies: 6 Last Post: No... | {"url":"http://mathforum.org/kb/thread.jspa?messageID=7929748&tstart=0","timestamp":"2014-04-21T03:11:29Z","content_type":null,"content_length":"28820","record_id":"<urn:uuid:60f17597-f6ba-45bb-98dc-c8a5bc2eb2ca>","cc-path":"CC-MAIN-2014-15/segments/1397609539447.23/warc/CC-MAIN-20140416005219-00280-ip-10-147-4-33.ec2.... |
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electrostatic potential energy of a system of three charges
... | {"url":"http://openstudy.com/updates/513444c6e4b093a1d9494726","timestamp":"2014-04-20T16:03:57Z","content_type":null,"content_length":"44371","record_id":"<urn:uuid:167e4f26-24dd-491d-84e4-112bab495044>","cc-path":"CC-MAIN-2014-15/segments/1397609538824.34/warc/CC-MAIN-20140416005218-00659-ip-10-147-4-33.ec2.internal.... |
Renewal theory
From Encyclopedia of Mathematics
A branch of probability theory describing a large range of problems connected with the rejection and renewal of the elements of some system. The principal concepts in renewal theory are those of a
renewal process and renewal equation. A renewal process may be described us... | {"url":"http://www.encyclopediaofmath.org/index.php/Renewal_theory","timestamp":"2014-04-19T09:38:28Z","content_type":null,"content_length":"21942","record_id":"<urn:uuid:b6f97b82-8f10-4c00-80cf-b5c7e1e3f706>","cc-path":"CC-MAIN-2014-15/segments/1397609537097.26/warc/CC-MAIN-20140416005217-00129-ip-10-147-4-33.ec2.inte... |
Average parameterization and partial kernelization for computing medians
- In Proceedings of the 27th International Symposium on Theoretical Aspects of Computer Science (STACS ’10), volume 5 of LIPIcs
"... Abstract. Research on parameterized algorithmics for NP-hard problems has steadily grown over the last years. We s... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=10190270","timestamp":"2014-04-17T06:07:23Z","content_type":null,"content_length":"32428","record_id":"<urn:uuid:e832aaa7-38af-4aa4-91a6-0c57ff0f03e2>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00409-ip-10-147-4-33.ec2.internal.w... |
A to Z Kids Stuff | Preschool Shapes Theme
Ricky Rectangle
Ricky Rectangle is my name.
My four sides are not the same.
2 are short and 2 are long.
Count my sides, come right along.
1, 2, 3, 4.
Sponge Painting
Need: construction paper rectangle, paint, rectangular sponges
Place pain... | {"url":"http://atozkidsstuff.com/shapes2.html","timestamp":"2014-04-18T05:30:04Z","content_type":null,"content_length":"26286","record_id":"<urn:uuid:cf93b047-b542-4613-b108-de5b579eca7a>","cc-path":"CC-MAIN-2014-15/segments/1397609532573.41/warc/CC-MAIN-20140416005212-00341-ip-10-147-4-33.ec2.internal.warc.gz"} |
WSU Libraries homepage
WSU Libraries Online Catalog--locate books and materials owned by the Libraries
Electronic Journal List--a growing number of the libraries' journals are available online
WSU Mathematics & Statistics Department
Full list of Databases by Subject
Applied Science Full Text--One of the WilsonWeb datab... | {"url":"http://library.wichita.edu/aveng/math.htm","timestamp":"2014-04-18T15:40:09Z","content_type":null,"content_length":"8336","record_id":"<urn:uuid:fb2cd70e-56ca-4b1e-8a81-acd8f393d6aa>","cc-path":"CC-MAIN-2014-15/segments/1398223202548.14/warc/CC-MAIN-20140423032002-00429-ip-10-147-4-33.ec2.internal.warc.gz"} |
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
Pair correlation functions around a pulled A particle at T = 0.14 for different forces f and at equilibrium (dashed lines). The solid lines in the plots correspond to the forces f = 2.5, 6.0, 8.0,
10.0, an... | {"url":"http://scitation.aip.org/content/aip/journal/jcp/138/12/10.1063/1.4770335","timestamp":"2014-04-18T14:21:11Z","content_type":null,"content_length":"85578","record_id":"<urn:uuid:b4935483-1901-449b-8fd2-be37411b816e>","cc-path":"CC-MAIN-2014-15/segments/1397609539665.16/warc/CC-MAIN-20140416005219-00310-ip-10-14... |
Kalman filter vs Complementary filter
Note: At the bottom of the post the complete source code
The use of accelerometer and gyroscope to build little robots, such as the self-balancing, requires a math filter in order to merge the signals returned by the sensors.
The gyroscope has a drift and in a few time the values r... | {"url":"http://robottini.altervista.org/kalman-filter-vs-complementary-filter","timestamp":"2014-04-21T14:38:54Z","content_type":null,"content_length":"83358","record_id":"<urn:uuid:4c0c1e16-4232-4227-a2ee-783e2f92df76>","cc-path":"CC-MAIN-2014-15/segments/1397609540626.47/warc/CC-MAIN-20140416005220-00026-ip-10-147-4-... |
Zentralblatt MATH
Publications of (and about) Paul Erdös
Zbl.No: 791.05037
Autor: Erdös, Paul; Tuza, Zsolt
Title: Rainbow subgraphs in edge-colorings of complete graphs. (In English)
Source: Gimbel, John (ed.) et al., Quo vadis, graph theo... | {"url":"http://www.emis.de/classics/Erdos/cit/79105037.htm","timestamp":"2014-04-21T05:04:49Z","content_type":null,"content_length":"3605","record_id":"<urn:uuid:eba2b265-b312-4504-91b5-71849ce42c4a>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00036-ip-10-147-4-33.ec2.internal.warc... |
October 31st 2008, 08:11 PM
The scale of a map is 1:300 000
Find the actual area of the village, in km^2, if the area on the map is 3cm^2
November 1st 2008, 07:25 PM
Prove It
It tells us that 1cm on the map gives 300,000 cm in real life.
If we had a square of side length 1cm, it would correspond to a sq... | {"url":"http://mathhelpforum.com/geometry/56839-maps-print.html","timestamp":"2014-04-16T08:21:39Z","content_type":null,"content_length":"6951","record_id":"<urn:uuid:0d09e5bf-3a46-42e0-b333-887e45ac36ee>","cc-path":"CC-MAIN-2014-15/segments/1397609521558.37/warc/CC-MAIN-20140416005201-00074-ip-10-147-4-33.ec2.internal... |
Contour integral calculation?
October 18th 2011, 12:24 PM #1
Contour integral calculation?
So basically I need to calculate this
where L is defined as
How should I approach it? "Wolfram Mathematica" or "Wolfram Alpha" would be preferred, however "Mathcad" or "Maple" input is also fine as long as one does th... | {"url":"http://mathhelpforum.com/math-software/190724-contour-integral-calculation.html","timestamp":"2014-04-17T10:25:30Z","content_type":null,"content_length":"29799","record_id":"<urn:uuid:7a9f9544-fa06-4d7c-9911-2758e9bed23e>","cc-path":"CC-MAIN-2014-15/segments/1397609527423.39/warc/CC-MAIN-20140416005207-00098-ip... |
Karl Pearson
34,117pages on
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Assessment | Biopsychology | Comparative | Cognitive | Developmental | Language | Individual differences | Personality | Philosophy | Social |
Methods | Statistics | Clinical | Educational | Industrial | Professional items | World psychology |
Professional Psychology: Debating Cham... | {"url":"http://psychology.wikia.com/wiki/Karl_Pearson?oldid=26064","timestamp":"2014-04-24T12:50:08Z","content_type":null,"content_length":"78647","record_id":"<urn:uuid:72f6686c-52d3-4e3a-934c-df0b6f84f725>","cc-path":"CC-MAIN-2014-15/segments/1398223206120.9/warc/CC-MAIN-20140423032006-00253-ip-10-147-4-33.ec2.intern... |
Post a reply
I am used to doing this problem in reverse so I am hoping that I did it correctly.
Find the system of equations that is equivalent to the matrix equation given below.
[-2 5] [x] = [3]
[ 1 4] [y] = [6]
The answer that I got was {-2x+5y=3
{ x+4y=6
Did I do this correctly? | {"url":"http://www.mathisfunforum.com/post.php?tid=19513","timestamp":"2014-04-17T07:02:07Z","content_type":null,"content_length":"15671","record_id":"<urn:uuid:20b51c8d-c1a1-4256-ad13-01dcf09f471e>","cc-path":"CC-MAIN-2014-15/segments/1397609526311.33/warc/CC-MAIN-20140416005206-00644-ip-10-147-4-33.ec2.internal.warc.... |
Course Descriptions
Liberal Arts Division
Units (Credits): 1–3; Prerequisites: none
Math 90 is designed to provide individualized instruction in basic math skills including addition, subtraction, multiplication, and division of whole numbers, fractions, decimals and percents. This
class is intended for students who nee... | {"url":"http://www.wnc.edu/academics/catalog/math/","timestamp":"2014-04-19T04:35:46Z","content_type":null,"content_length":"25890","record_id":"<urn:uuid:3ac83c8c-039e-495e-abc4-b21545ba6a34>","cc-path":"CC-MAIN-2014-15/segments/1397609535775.35/warc/CC-MAIN-20140416005215-00211-ip-10-147-4-33.ec2.internal.warc.gz"} |
Gurnee Algebra 1 Tutor
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am very patient and will not give up on any student until the subjec... | {"url":"http://www.purplemath.com/Gurnee_algebra_1_tutors.php","timestamp":"2014-04-16T13:43:14Z","content_type":null,"content_length":"23834","record_id":"<urn:uuid:e72ead91-987e-45b6-9505-cb4440a4b67d>","cc-path":"CC-MAIN-2014-15/segments/1398223201753.19/warc/CC-MAIN-20140423032001-00313-ip-10-147-4-33.ec2.internal.... |
Kendriya Vidyalaya HOTS Questions for Class 10
Kendriya Vidyalaya HOTS Questions for Class 10 2012
HOTS Questions
Class 10
For further information regarding Kendriya Vidyalaya HOTS Questions for Class 10, connect with us on facebook, google+ and twitter.
Tags: kendriya vidyalaya sample papers class 10, kendriya vidyala... | {"url":"http://examsindia.net/2009/12/kendriya-vidyalaya-hots-questions-for-class-10.html","timestamp":"2014-04-17T13:06:25Z","content_type":null,"content_length":"24325","record_id":"<urn:uuid:7a77698f-7e60-4407-a9cc-6dccee9ccbf4>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00157-... |
The Abstract Format
6 The Abstract Format
This document describes the standard representation of parse trees for Erlang programs as Erlang terms. This representation is known as the abstract format. Functions dealing with such parse trees
are compile:forms/[1,2] and functions in the modules epp, erl_eval, erl_lint, erl... | {"url":"http://www.erlang.org/doc/apps/erts/absform.html","timestamp":"2014-04-16T10:11:33Z","content_type":null,"content_length":"42731","record_id":"<urn:uuid:eeea21c1-1b89-41d5-83ca-7a98499c3e5c>","cc-path":"CC-MAIN-2014-15/segments/1397609523265.25/warc/CC-MAIN-20140416005203-00614-ip-10-147-4-33.ec2.internal.warc.... |
[FOM] interesting real number
Martin Davis martin at eipye.com
Sat Apr 15 16:30:51 EDT 2006
Replying to a query by Bob Solovay, Ron Graham wrote:
> This real is well known to be e^(1/e)
Just to comment that this number has a nostalgic interest for me. When I
was a freshman I managed to prove that the sequence defined ... | {"url":"http://www.cs.nyu.edu/pipermail/fom/2006-April/010416.html","timestamp":"2014-04-18T16:10:26Z","content_type":null,"content_length":"2641","record_id":"<urn:uuid:82785d88-5e57-4e37-a889-7a24f31fb18d>","cc-path":"CC-MAIN-2014-15/segments/1398223206118.10/warc/CC-MAIN-20140423032006-00031-ip-10-147-4-33.ec2.inter... |
What is the minimum set of combinations C(p,n) required to guarantee q<p matches with a target combination (pT,n)
up vote 1 down vote favorite
A state lottery draws p numbers out of a grid of n numbers. Players participate by filling in p numbers into a grid, at unit cost. They can sumbit as many grids as they like.
Th... | {"url":"http://mathoverflow.net/questions/35003/what-is-the-minimum-set-of-combinations-cp-n-required-to-guarantee-qp-matches/35018","timestamp":"2014-04-20T08:34:52Z","content_type":null,"content_length":"65018","record_id":"<urn:uuid:a7bdf7e3-4699-47c9-92bd-a01c5bef8940>","cc-path":"CC-MAIN-2014-15/segments/139760953... |
Structs pointing to each other, stack overflow
I'm trying to build a simply binary tree (made of node structs which each have two "child" slots and one "parent" slot)
(defstruct node child-a child-b parent)
I can for example create two new nodes like so:
(defparameter a (make-node))
(defparameter b (make-node))
Now I w... | {"url":"http://www.lispforum.com/viewtopic.php?p=11495","timestamp":"2014-04-21T12:10:37Z","content_type":null,"content_length":"26770","record_id":"<urn:uuid:9cb60ebf-e103-4c87-b076-0da5bbab911e>","cc-path":"CC-MAIN-2014-15/segments/1397609539776.45/warc/CC-MAIN-20140416005219-00619-ip-10-147-4-33.ec2.internal.warc.gz... |
[Lapack] A old problem arises again -- symmetric matrix triple product?
LAPACK Archives
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[Lapack] A old prob... | {"url":"http://icl.cs.utk.edu/lapack-forum/archives/lapack/msg00058.html","timestamp":"2014-04-18T15:40:34Z","content_type":null,"content_length":"7039","record_id":"<urn:uuid:17f926ea-c7a6-452c-9552-80a155c26dd9>","cc-path":"CC-MAIN-2014-15/segments/1397609533957.14/warc/CC-MAIN-20140416005213-00099-ip-10-147-4-33.ec2... |
Algorithm 410 (partial sorting
- In Proc. 8th Workshop on Algorithm Engineering and Experiments (ALENEX , 2006
"... Let A be a set of size m. Obtaining the first k ≤ m elements of A in ascending order can be done in optimal O(m+k log k) time. We present an algorithm (online on k) which incrementally gives the
next smal... | {"url":"http://citeseerx.ist.psu.edu/showciting?cid=4838984","timestamp":"2014-04-19T03:05:56Z","content_type":null,"content_length":"12342","record_id":"<urn:uuid:80f2b542-c133-45ba-a2c4-b7444787170e>","cc-path":"CC-MAIN-2014-15/segments/1398223207985.17/warc/CC-MAIN-20140423032007-00469-ip-10-147-4-33.ec2.internal.wa... |
Greatest Common Denominators - Definition and Uniqueness
October 13th 2012, 01:00 AM #1
Greatest Common Denominators - Definition and Uniqueness
On page 274 in Chaper 8 - Euclidean, Principal Ideal and Unique Factorization Domains, Dummit and Foote state Proposition 3 as follows: (see attachment - Proposition 3 ...... | {"url":"http://mathhelpforum.com/advanced-algebra/205224-greatest-common-denominators-definition-uniqueness.html","timestamp":"2014-04-20T06:25:18Z","content_type":null,"content_length":"32846","record_id":"<urn:uuid:a73bad37-732c-4190-905c-17688b659103>","cc-path":"CC-MAIN-2014-15/segments/1397609538022.19/warc/CC-MAI... |
Bisymmetric Matrix, solving set of linear equations.
up vote 4 down vote favorite
A bisymmetric matrix is a square matrix that is symmetric about both of its main diagonals.
If $A$ is a bisymmetric matrix and I'm interested in solving $Ax=b$.
Are there techniques used to exploit this structure when solving the system o... | {"url":"http://mathoverflow.net/questions/39618/bisymmetric-matrix-solving-set-of-linear-equations","timestamp":"2014-04-23T23:48:31Z","content_type":null,"content_length":"53328","record_id":"<urn:uuid:46f86b41-6902-4ebb-a26f-375055f854df>","cc-path":"CC-MAIN-2014-15/segments/1398223203841.5/warc/CC-MAIN-2014042303200... |
Cryptology ePrint Archive: Report 2011/118
New Fully Homomorphic Encryption over the IntegersGu ChunshengAbstract: We first present a fully homomorphic encryption scheme over the integers, which modifies the fully homomorphic encryption
scheme in [vDGHV10]. The security of our scheme is merely based on the hardness of ... | {"url":"http://eprint.iacr.org/2011/118","timestamp":"2014-04-16T22:22:06Z","content_type":null,"content_length":"2857","record_id":"<urn:uuid:01ef3dd9-5d91-4f58-ac2a-9efa1f7d9da7>","cc-path":"CC-MAIN-2014-15/segments/1398223211700.16/warc/CC-MAIN-20140423032011-00148-ip-10-147-4-33.ec2.internal.warc.gz"} |
MathGroup Archive: September 2011 [00415]
[Date Index] [Thread Index] [Author Index]
Re: Plot axis length and size ratio (TwoPlot revive)
• To: mathgroup at smc.vnet.net
• Subject: [mg121571] Re: Plot axis length and size ratio (TwoPlot r... | {"url":"http://forums.wolfram.com/mathgroup/archive/2011/Sep/msg00415.html","timestamp":"2014-04-16T16:30:14Z","content_type":null,"content_length":"27940","record_id":"<urn:uuid:9d1ae900-9e19-4dc5-af84-849a4fae8228>","cc-path":"CC-MAIN-2014-15/segments/1397609538110.1/warc/CC-MAIN-20140416005218-00608-ip-10-147-4-33.e... |
Students new to the Santa Monica College mathematics program who wish to enroll in a course must take the Math Assessment test before enrolling. A student who has successfully completed college level
math courses (earned a grade of C or better) at another institution may be able to verify having met prerequisites by su... | {"url":"http://www2.smc.edu/schedules/2013/fall/071_133_schedule.htm","timestamp":"2014-04-16T18:57:08Z","content_type":null,"content_length":"75185","record_id":"<urn:uuid:7371bbf9-5dd5-4b36-809b-a02bc3db36a4>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00549-ip-10-147-4-33.ec2.in... |
Brentwood, CA Algebra 2 Tutor
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Millbury, MA ACT Tutor
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Atlanta Algebra 1 Tutor
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1997-98 UAF Catalog
Degrees and Programs
Course Description Index
College of Science, Engineering and Mathematics
Department of Mathematical Sci... | {"url":"http://www.uaf.edu/catalog/catalog_97-98/programs/statistics.html","timestamp":"2014-04-19T23:55:53Z","content_type":null,"content_length":"6553","record_id":"<urn:uuid:b38e102e-afb2-42a0-ae03-23f07f6719ca>","cc-path":"CC-MAIN-2014-15/segments/1397609537754.12/warc/CC-MAIN-20140416005217-00152-ip-10-147-4-33.ec... |
Homework Help
Posted by Helga on Thursday, March 1, 2012 at 2:53am.
How do I calculate 4^n=1/(2(n-n^2))? Thanks.
• Algebra - MathMate, Thursday, March 1, 2012 at 9:18am
cross multiply to get:
Since there is no more division and the right-hand side is less than 1, we can start searching for n where n<1, say 1/... | {"url":"http://www.jiskha.com/display.cgi?id=1330588386","timestamp":"2014-04-21T04:47:03Z","content_type":null,"content_length":"10275","record_id":"<urn:uuid:5adf0f0a-4f1b-48c5-95bc-8fa4ed291d0a>","cc-path":"CC-MAIN-2014-15/segments/1397609539493.17/warc/CC-MAIN-20140416005219-00531-ip-10-147-4-33.ec2.internal.warc.g... |
Continuous Markov Processes
1. “Probability Distributions,” Connexions module m43336
2. “Introduction to Markov Processes,” Connexions module m44014
3. “Integral of a Markov Process,” Connexions module m44376: this module will not be needed until the section about Brownian motion, "Brownian Motion". In turn, some of... | {"url":"http://cnx.org/content/m44258/latest/","timestamp":"2014-04-20T00:47:40Z","content_type":null,"content_length":"850670","record_id":"<urn:uuid:7723e984-206f-4d6c-9f9d-cbd79e848066>","cc-path":"CC-MAIN-2014-15/segments/1397609537804.4/warc/CC-MAIN-20140416005217-00580-ip-10-147-4-33.ec2.internal.warc.gz"} |
Park Ridge, IL Algebra Tutor
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The recipe for a loafcake calls for 3/4 pound of jelly beans i... | {"url":"http://openstudy.com/updates/50b2cd8de4b09749ccacb392","timestamp":"2014-04-23T18:41:27Z","content_type":null,"content_length":"60850","record_id":"<urn:uuid:0e338b0e-2078-4cdb-b62b-5e832c141ffa>","cc-path":"CC-MAIN-2014-15/segments/1398223203235.2/warc/CC-MAIN-20140423032003-00463-ip-10-147-4-33.ec2.internal.w... |
Plandome, NY Trigonometry Tutor
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No. 180: Pi
Today, let's talk about
School-children can always be found competing to see who knows the most digits of pi -- the ratio of the circumference of a circle to its diameter. My interest and patience usually ran out at
3.14159256. But finding out what those digits were has been a major mathematical... | {"url":"http://uh.edu/engines/epi180.htm","timestamp":"2014-04-16T19:42:21Z","content_type":null,"content_length":"7284","record_id":"<urn:uuid:0d169d20-ebfd-4c0f-b8f8-e667abfd1b87>","cc-path":"CC-MAIN-2014-15/segments/1397609524644.38/warc/CC-MAIN-20140416005204-00359-ip-10-147-4-33.ec2.internal.warc.gz"} |
I have been stuck on this for a bit now
May 2nd 2012, 05:21 AM #1
May 2012
Find all values x such that $(2^x-4)^3+(4^x-2)^3 = (4^x+2^x-6)^3$
I expanded the entire thing:
$2^3^x+2^2^x-38+4^3^x+4^2^x+4^x = (4^3^x)(2^5^x)+(4^2^x)(2^3^x)+4^x+4^x-105+2^x+2^x$
but not quite sure what to do from here. Is t... | {"url":"http://mathhelpforum.com/math-puzzles/198239-i-have-been-stuck-bit-now.html","timestamp":"2014-04-17T04:29:28Z","content_type":null,"content_length":"52161","record_id":"<urn:uuid:bde898cd-a4f0-41b8-a8c4-ec56150ef65e>","cc-path":"CC-MAIN-2014-15/segments/1397609526252.40/warc/CC-MAIN-20140416005206-00495-ip-10-... |
Discrete Mathematics Kenneth H. Rosen
About the Book
to accompany Discrete Mathematics and Its ... | {"url":"http://www.mhhe.com/math/advmath/rosen/supplements.mhtml","timestamp":"2014-04-18T10:34:28Z","content_type":null,"content_length":"7970","record_id":"<urn:uuid:f606771f-bffd-4e11-8c94-a7c84fb3bfc9>","cc-path":"CC-MAIN-2014-15/segments/1397609533308.11/warc/CC-MAIN-20140416005213-00309-ip-10-147-4-33.ec2.interna... |
Posts by Richard Smith
2 posts • joined 20 Sep 2006
"Error correction inadequate"
Fixing up bit flips may seem important, but is hardly sufficient for a "serious HPC center" to trust the alleged answers generated. As is well-known, there are many other sources of error:
floating-point rounding, measurement error, appro... | {"url":"http://forums.theregister.co.uk/user/382/","timestamp":"2014-04-20T04:49:41Z","content_type":null,"content_length":"31117","record_id":"<urn:uuid:98be8c34-f7e9-4465-a5bf-d4779a863aa3>","cc-path":"CC-MAIN-2014-15/segments/1397609537864.21/warc/CC-MAIN-20140416005217-00434-ip-10-147-4-33.ec2.internal.warc.gz"} |
Matches for:
Foundations of Analysis is an excellent new text for undergraduate students in real analysis. More than other texts in the subject, it is clear, concise and to the point, without extra bells and
whistles. It also has many good exercises that help illustrate the material. My students were very satisfied wit... | {"url":"http://ams.org/bookstore?fn=20&arg1=whatsnew&ikey=AMSTEXT-18","timestamp":"2014-04-18T19:28:02Z","content_type":null,"content_length":"18852","record_id":"<urn:uuid:73e26ea2-2d17-45a4-a1e2-8912ba25fa50>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00167-ip-10-147-4-33.ec2.int... |
Prime Numbers
An integer is prime if its only positive divisors are itself and one.
Prime numbers have always been a keen interest to mathematicians for various reasons. One being there appears to be no rhyme or reason to the distribution of primes and there is no limit to finding
new primes. The largest known pri... | {"url":"http://mkaz.com/math/prime-numbers.html","timestamp":"2014-04-18T00:12:56Z","content_type":null,"content_length":"7280","record_id":"<urn:uuid:6aff6b57-32cb-44dc-ba31-e9240bcc7096>","cc-path":"CC-MAIN-2014-15/segments/1397609532374.24/warc/CC-MAIN-20140416005212-00216-ip-10-147-4-33.ec2.internal.warc.gz"} |
Small letters after tags
Has this happened to everyone.Maybe it is the browser or the Sulfur layout,but after hide and math tags text is of smaller font.
And this here text appears smaller to me.I don't know why.Does this happen in other layouts?
The limit operator is just an excuse for doing something you know you can... | {"url":"http://www.mathisfunforum.com/viewtopic.php?pid=213203","timestamp":"2014-04-17T16:10:01Z","content_type":null,"content_length":"40397","record_id":"<urn:uuid:0ea994ea-ed59-42ba-ac86-06f9f4ce21ca>","cc-path":"CC-MAIN-2014-15/segments/1397609530136.5/warc/CC-MAIN-20140416005210-00454-ip-10-147-4-33.ec2.internal.... |
Factorization of propagator matrices for efficient computation of
ASA 126th Meeting Denver 1993 October 4-8
5aUW10. Factorization of propagator matrices for efficient computation of wave-fields in horizontally layered fluid--solid media.
Sven Ivansson
[Dept. of Hydroacoust. and Seismol., Natl. Defence Res. Establishmen... | {"url":"http://www.auditory.org/asamtgs/asa93dnv/5aUW/5aUW10.html","timestamp":"2014-04-19T18:45:16Z","content_type":null,"content_length":"2180","record_id":"<urn:uuid:0835bdc0-e88b-45d2-88ea-7f3806598546>","cc-path":"CC-MAIN-2014-15/segments/1397609537308.32/warc/CC-MAIN-20140416005217-00044-ip-10-147-4-33.ec2.intern... |
668pages on
this wiki
Relations are nonnegative ordered pairs.A relation consists of a domain and range.A domain is a set of all first coordinates(x) of a relation, while a range is the set of all second coordinates(y).
E.G. Relation is {(1,10),(2,20),(3,30),(4,40)}
Its domain is {1,2,3,4}
Its range is {10,20,30,40}
In... | {"url":"http://math.wikia.com/wiki/Relation","timestamp":"2014-04-17T18:42:10Z","content_type":null,"content_length":"54785","record_id":"<urn:uuid:593f4038-afcd-489f-b2d5-e6c3addf4b33>","cc-path":"CC-MAIN-2014-15/segments/1398223206647.11/warc/CC-MAIN-20140423032006-00539-ip-10-147-4-33.ec2.internal.warc.gz"} |
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1. CJM 2011 (vol 63 pp. 798)
Representing Multipliers of the Fourier Algebra on Non-Commutative $L^p$ Spaces
We show that the multiplier algebra of the Fourier algebra on a locally compact group $G$ can be isometrically represented on a direct sum on non... | {"url":"http://cms.math.ca/cjm/msc/46L07","timestamp":"2014-04-16T07:28:04Z","content_type":null,"content_length":"36811","record_id":"<urn:uuid:90bf6f54-cbf1-4138-b1ea-6eecb4a2a3a6>","cc-path":"CC-MAIN-2014-15/segments/1398223205137.4/warc/CC-MAIN-20140423032005-00365-ip-10-147-4-33.ec2.internal.warc.gz"} |