content string | quality_label int64 | meta string | all-MiniLM-L6-v2_embedding list | doc_id int64 | unique_id string |
|---|---|---|---|---|---|
Math Magic - Modular Math
Modular Math:
A. Modular math is simply working with MOD. MOD is the remainder after dividing by a specific value. For example, 35 MOD 3 = 2 since the remainder after 35 is divided by 3 is 2.
B. Modular math works with congruencies. It is true that 35 MOD 3 = 2, but it is also true that this... | 4 | [
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SparkNotes: GRE: Geometry
2.1 Arithmetic 2.3 Geometry
2.2 Algebra 2.4 Data Analysis
Geometry
Geometry has a long and storied history that goes back thousands of years, which we’re sure you’re dying to hear about. But unless you’re taking the GRE to go for your masters in math history, this
has no possible rele... | 4 | [
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Probability: Choosing players from a group.
July 22nd 2010, 03:48 AM
phillychum
Probability: Choosing players from a group.
some homework question.
A total of 6 players is selected at random to form a volleyball team from a group of 10 girls and 5 boys, 6 of the girls and 3 of the boys have played the game ... | 4 | [
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مراجعة مادة الرياضيات للصف السادس mid term
by Randa Alex
Revision midterm j:6
Complete: a) 250 gm : kg= --------- : ---------
b) m : 125 cm= --------- : ---------
c) 1.8 : 1.6 : 1.2 = --------- : --------- : ----------
d) : 13 = --------- : --------
e) 16 kirat : 1 feddan = -------- : ---------
f) 0.5 : = -----... | 4 | [
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Quadratic Equation
Objective
Practically, you do not find a program that only follows a sequence of statements in order. Whilst, most programs contain one or more blocks of statements where they can be selected or executed
frequently. This kind of activities is called flow control. In C++, there are many coding struct... | 4 | [
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Exact Equations | Equations of Order One
The differential equation
is an if
Steps in Solving an Exact Equation
1. Let
2. Write the equation in Step 1 into the form
and integrate it partially in terms of x holding y as constant.
3. Differentiate partially in terms of y the result in St... | 4 | [
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Solving linear system using matrices a, ex from book-- I'm missing something!
July 10th 2012, 03:02 PM #1
Newbie
Joined
Sep 2011
Posts
2
Solving linear system using matrices a, ex from book-- I'm missing something!
Hello all!
Thanks in advance for looking at this for me.
I seem to missing a ste... | 5 | [
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-
STEREO IMAGE TRIANGULATION - LINEAR CASE
14 May 2013
Based on collinearity equations, two image triangulation by bundle is implemented.
... | 4 | [
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Answers to assigment 4
Answers to Assignment 4
Chapter 11:
Problem 1:
mpc= DC/DDI = change in consumption spending divided by the change in real disposable income.
C - consumption spending
DI - real disposable income
For this pr... | 5 | [
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[Maxima] pwint in package pw.mac
Richard Hennessy rich.hennessy at verizon.net
Mon Jun 8 15:58:36 CDT 2009
That is a bug, actually 2 bugs. I have put in place a quick fix the pwdefint() function but now pwdefint(g(x),x, a, b) requires a
<= b so
pwdefint(g(x),x,b,a) # pwdefint(g(x),x,a,b)
The pwint problem is also ... | 5 | [
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Alg. Geom. Proofs
October 26th 2008, 02:25 PM #1
Newbie
Joined
Apr 2008
Posts
17
Alg. Geom. Proofs
I'm not very good at thinking about these things... any help is appreciated, it's due 10/27.
This thread has problem 1.2 in it:
http://www.mathhelpforum.com/math-he...ns-origin.html
... | 4 | [
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Crypto Series: Introduction to the RSA algorithm
After seeing how the ElGamal system works, today we are going to take a look at the RSA public key cryptosystem. The RSA algorithm was first published by Rivest, Shamir and Adleman in 1978 and is
probably the most used crypto algorithm today.
Despite this fact, the algo... | 5 | [
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Transmission
Transmission line attenuation
Up... | 4 | [
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Math Help
September 27th 2007, 09:40 PM #1
Junior Member
Joined
Mar 2007
Posts
27
application
Theorem: The force on a submerged vertical plane area equals the product of the weight per unit volume, the submerged area, and the depth of the centroid of the area below the surface
1. What force must be... | 4 | [
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C
Dataplot Vol 1 Auxiliary Chapter
INFLUENCE CURVE
Name:
... INFLUENCE CURVE
Type:
Graphics Command
Purpose:
Generate an influence curve for a given statistic.
Description:
Influence functions are an important concept in studying robust statistics. The influence curve attempts to provide emp... | 5 | [
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Proposition 48
To find the first binomial line.
Set out two numbers AC and CB such that the sum of them AB has to BC the ratio which a square number has to a square number, but does not have to CA the ratio which a square number has to a square
number.
Set out any rational straight line D, and let EF be commensurabl... | 5 | [
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Prerequisites
Department of Mathematical Sciences,
Northern Illinois University
MATH 211 Course Prerequisites
CATALOG DESCRIPTION: Calculus for Business and Social Science (3). An elementary treatment of topics from differential and... | 5 | [
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Calculus
February 22nd 2006, 12:42 PM
frozenflames
Calculus
The average value of cos x on the interval [–3, 5] is
A) (sin 5 – sin 3)/8
B) (sin 5 – sin 3)/2
C) (sin 3 – sin 5)/2
D) (sin 3 + sin 5)/2
E) (sin 3 + sin 5)/8
February 22nd 2006, 02:16 PM
ThePerfectHacker
Quote:
Ori... | 5 | [
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Solve the Quadratic Congruence
since 6 and 17 are coprime, the above equation is equivalent to: $18x^2 + 12 x \equiv 24 \mod 17,$ which is equivalent to: $x^2 + 12 x - 7 \equiv 0 \mod 17.$ now we have: $x^2 + 12x - 7=(x+6)^2 - 43
\equiv (x+6)^2 - 9 \mod 17.$ but $(x+6)^2 - 9 = (x+3)(x+9).$ so the solutions to your equa... | 5 | [
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Loans and Interest
March 8th 2011, 07:59 AM
ksiemsen24
Loans and Interest
Jim takes out a loan for $5,000 compounded monthly at 5%annual interest and his friend Mark takes out a loan the same day for $6,000 compounded monthly at 3% annual interest:
1) When will the amount of payments made by Jim be equal to... | 4 | [
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continuity and differentiablity question again.
June 15th 2008, 02:18 PM #1
Newbie
Joined
Jun 2008
Posts
4
continuity and differentiablity question again.
A function f(x) is defined to equal cos(ax) + b for x>=0 and 2 – x3 for x < 0, where a and b are constants. It is known that this function is differen... | 4 | [
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atio of A
* The ratio of A:B:C
1) On a tree planting day, class A planted 2/5 the number of trees class B planted. Class C planted thrice as many trees as class B. Class A planted 48 trees. How many trees did the three classes
plant altogether?
Important note : This is very simple sum involving three quantities ratio... | 4 | [
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Fill in missing step please!
April 13th 2010, 10:33 AM #1
Junior Member
Joined
Aug 2009
Posts
28
Fill in missing step please!
Hi, I am probably an idiot for missing this but im sick of staring at this problem i thought i would come here to be enlightened. anyways
phase 1
assuming n,m > 0 and real... | 4 | [
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Parametric Parameter Elimination
May 2nd 2010, 09:07 PM #1
Newbie
Joined
Apr 2010
Posts
9
Parametric Parameter Elimination
Eliminate the parameter to find a cartesian equation of the curve.
x = tan(t)
y = sec^2(t)
from 0 <= t <= pi/2
Thank you!
For eliminating the parameter:
... | 4 | [
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Simple Calculations for Cable Pulling
You can keep from damaging cables during the pulling process by paying attention to installation parameters and correctly sizing bends.
Even if your crew has taken all the necessary precautions in paying out cable and handling the reels, a cable pull can still go sour if you damag... | 5 | [
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0.0201416015625... | 5,324 | 5324 | |
Integration Help
May 27th 2006, 05:44 PM #1
Newbie
Joined
May 2006
Posts
11
Integration Help
Please for some help with this integration problem.
$<br /> \int \frac{dx}{\sqrt{(a x^4 + b x^2 + c)}}<br />$
i.e.
integral ((a x^4 + b x^2 + c)^–½) dx
Are you certain it is not,
$<br /> \int... | 5 | [
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C
3
CONTINUOUS FUNCTIONS
Continuous motion
A continuous function
The definition of "a function is continuous at a value of x"
Limits of continuous functions
Removable discontinuity
CONTINUOUS MOTION is motion that continues without a break. Its prototype is a straight line. Calculus wants to describe that motion... | 4 | [
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Work, power, and machines
1 Levers and mechanical advantage
Provided by Kenan Fellows Program.
In this lesson, students will be introduced to the basic principles of all machines and review the six simple machines. They will use a first class lever to explore the relationship between fulcrum
position and effort forc... | 4 | [
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Help proving convergence
May 2nd 2011, 09:11 AM
roporte
Help proving convergence
Please, could you help me with this demonstration?
Let X a vectorial space with norm and ${x_n}$ e ${y_n}$ sequences over X where x_n->x and y_n->Y.
A) If $\lambda_n$ is a scalar sequence that converges to $\lambda$ prove ... | 5 | [
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0.00897216796875,
-0.0908203125,
-0.0693359375,
0.0267333984375,
0.08056640625,
-0.0021820068359375,
-0.028076171875,
0.049560546875,
0.0155029296875,
0.0546875,
-0.0... | 5,328 | 5328 | |
entailment - interpretation
December 18th 2010, 05:09 PM #1
Newbie
Joined
Dec 2010
Posts
1
entailment - interpretation
Hello All
To prove the following, I have tried resolution with success, but I need to do it using semantics of interpretation; that every interpretation that satisfies the first sen... | 4 | [
0.003265380859375,
0.0157470703125,
0.10205078125,
-0.00775146484375,
0.0546875,
0.06201171875,
0.0546875,
0.01263427734375,
0.01531982421875,
0.014404296875,
0.017333984375,
-0.07666015625,
0.078125,
0.052734375,
0.046875,
0.039306640625,
0.08642578125,
0.07861328125,
-0.1054687... | 5,329 | 5329 | |
Binomial Products
Special Binomial Products
See what happens when we multiply some binomials ...
Binomial
A binomial is a polynomial with two terms
Product... | 4 | [
0.01611328125,
-0.032958984375,
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0.050537109375,
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0.041015625,
0.034912109375,
0.076171875,
0.1123046875,
-0.076171875,
0.08642578125,
-... | 5,330 | 5330 | |
# Copyright 2010, 2011, 2012, 2013, 2014 Kevin Ryde # This file is part of Math-PlanePath. # # Math-PlanePath is free software; you can redistribute it and/or modify # it under the terms of the GNU
General Public License as published by the # Free Software Foundation; either version 3, or (at your option) any later # v... | 4 | [
-0.031494140625,
-0.07666015625,
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0.016357421875,
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0.00640869140625,
-0.0791015625,
-0.00059... | 5,331 | 5331 | |
Regularity of the right hand side (the source term) in Evans-Krylov theory
up vote 1 down vote favorite
1
A well-known theorem of Evans and Krylov states that in an equation of the form $F(D^2 u)=g$, provided that the right hand side and $u$ both have Lipschitz gradient, and that $F$ is concave or convex
and of class... | 4 | [
-0.02734375,
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0.0390625,
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-0.006... | 5,332 | 5332 | |
Binomial expansion question
March 6th 2011, 11:35 AM
mathsnerd1
Binomial expansion question
Hi everybody,
I am having some trouble with these questions and I'm not really sure where to start.
Find the term independant of $x$ in the expansion of:
$<br /> (\frac{1}{3x} - \frac{3x^2}{2})^9$
Find... | 4 | [
-0.01171875,
-0.033935546875,
-0.05419921875,
0.02587890625,
-0.049560546875,
0.0791015625,
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-0.0546875,
0.031005859375,
-0.047607421875,
0.06787109375,
-0.06591796875,
-0.022705078125,
-0.07177734375,
0.03173828125,
0.03271484375,
-0.0047607421875,
-0.0184326171875,... | 5,333 | 5333 | |
the probability that this power supply will be inadequate on any given day
February 21st 2009, 07:12 PM #1
Member
Joined
May 2008
Posts
103
the probability that this power supply will be inadequate on any given day
In a certain city, the daily consumption of electric power in millions of kilowatt-hours c... | 5 | [
0.06494140625,
0.052978515625,
0.0022430419921875,
0.0380859375,
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0.09033203125,
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-0.03662109375,
0.00823974609375,
0.03662109375,
-0.0283203125,
0.09423828125,
-0.0191650390625,
0.07177734375,
0.0026397705078125,
-0.0252685546875... | 5,334 | 5334 | |
Permutation of items with a constant order subset.
July 6th 2011, 08:03 AM #1
Permutation of items with a constant order subset.
I just wrote a practice midterm for a probability course. There was no answer key and the person who "marked" the exam and I were unsure about one of the questions.
"What is the pr... | 5 | [
0.025146484375,
-0.0634765625,
0.0869140625,
-0.045654296875,
-0.05126953125,
0.10400390625,
0.0947265625,
-0.0294189453125,
-0.006378173828125,
0.05615234375,
0.043212890625,
-0.0322265625,
0.0289306640625,
-0.035888671875,
-0.06884765625,
0.0177001953125,
-0.035400390625,
-0.0673... | 5,335 | 5335 | |
Differentiation Problem
October 4th 2010, 08:16 PM #1
Newbie
Joined
Oct 2010
Posts
1
Differentiation Problem
Hi, I need help.
The organisers of a sheepdog competition have 100 metres of fencing available to fence an enclosure for some sheep. They wish to make the area rectangular and as large as poss... | 4 | [
0.0888671875,
0.07080078125,
0.003662109375,
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0.0004482269287109375,
-0.046875,
-0.01416015625,
0.0693359375,
-0.10546875,
0.08056640625,
0.041259765625,
-0.036865234375,
0.054443359375,
0.1884765625,
0.0302734375,
0.126953125,
-0.01251220703125,
0.021240234375,
-0.... | 5,336 | 5336 | |
IntroductionMathematical AnalysisDerivation of the Equation for Radiant FluxIdentifying Specific Wave Front Angles θn with Invariable Φe for Two Sets of Integral BoundariesDetermination of the Magnitude of Φe at Wave Front Angles θnpEffect of Distance x and y of Photodetector from Origin with Varying θDeriving the Spee... | 4 | [
-0.0118408203125,
0.018798828125,
0.01611328125,
-0.00726318359375,
0.017822265625,
-0.04150390625,
0.045166015625,
0.049560546875,
-0.072265625,
0.00885009765625,
0.0791015625,
-0.03125,
0.0537109375,
-0.09375,
0.0625,
-0.0022125244140625,
-0.06982421875,
-0.017578125,
-0.041503... | 5,337 | 5337 | |
Interpolation
Interpolation Polynomials
For the sake of convenience in reading this document, the applet window should be moved to the right half of the screen, and the two windows should be resized so that they do not overlap.
Wh... | 5 | [
-0.06640625,
0.022216796875,
0.00958251953125,
-0.028076171875,
-0.00677490234375,
-0.039794921875,
-0.00421142578125,
-0.0005645751953125,
0.0130615234375,
-0.06005859375,
-0.009521484375,
-0.0238037109375,
0.0225830078125,
-0.010009765625,
-0.03271484375,
0.080078125,
-0.1235351562... | 5,338 | 5338 | |
Binomial Theorem Lesson Plans & Worksheets | Lesson Planet
Binomial Theorem Teacher Resources
Find Binomial Theorem educational ideas and activities
Showing 1 - 20 of 45 resources
A week's worth of teaching on the Binomial Theorem. Lesson examples and a plethora of worksheets included. Learners find coefficients of ... | 4 | [
-0.0081787109375,
-0.0240478515625,
-0.032470703125,
0.0235595703125,
-0.064453125,
0.041259765625,
0.0673828125,
-0.00799560546875,
0.06201171875,
0.10595703125,
-0.0113525390625,
-0.00836181640625,
-0.0096435546875,
0.0001277923583984375,
0.08203125,
0.0654296875,
-0.06640625,
0.... | 5,339 | 5339 | |
Quick Polynomial Function Question
March 13th 2009, 10:44 PM #1
Junior Member
Joined
Mar 2009
Posts
29
Quick Polynomial Function Question
For the function
$f(x) = x^{3} - x^{2}=4x-3$
I find the derivative to be:
$f'(x) = 3x^{2}-2x+4$
and I need to set the derivative to equal 0 for this ... | 4 | [
0.03662109375,
-0.038818359375,
-0.034912109375,
0.0079345703125,
-0.11572265625,
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0.0255126953125,
0.12890625,
0.003021240234375,
0.0791015625,
-0.0211181640625,
0.052734375,
-0.031005859375,
0.05419921875,
0.087890625,
0.0174560546875,
-0.021728... | 5,340 | 5340 | |
Exponential fit, without start-guess - File Exchange - MATLAB Central
File Information
exp2fit solves the non-linear least squares problem exact
and using it as a start guess in a least square meth... | 5 | [
-0.0908203125,
-0.01141357421875,
-0.0067138671875,
-0.0164794921875,
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0.0050048828125,
0.0556640625,
-0.027587890625,
0.029296875,
0.0732421875,
-0.046630859375,
0.059814453125,
-0.0595703125,
0.0185546875,
-0.03515625,
-0.004638671875,
-0.04467773437... | 5,341 | 5341 | |
Optimal Filter Estimation for Lucas-Kanade Optical Flow
Open Access This article is
• freely available
• re-usable
Article
Optimal Filter Estimation for Lucas-Kanade Optical Flow
Computer Science Department, Lucian Blaga University of Sibiu, B-dul Victoriei 10, 550024 Sibiu, Romania; E-Mail:
nusrat_nik@yahoo.c... | 4 | [
-0.0167236328125,
-0.037841796875,
0.0390625,
-0.07763671875,
0.0712890625,
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-0.068359375,
0.08935546875,
-0.037841796875,
-0.0654296875,
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0.0167236328125,
-0.0849609375,
0.018310546875,
-0.031494140625,
0.07470703125... | 5,342 | 5342 | |
large numbers in log space -- dividing summations
August 10th 2011, 04:11 PM
timfoea
large numbers in log space -- dividing summations
Hi, I originally posted this is Calculus (it was my first post, probably a mistake, maybe still a mistake to post here, I am not sure). I tried to get help in Chat, but it wasn't... | 4 | [
-0.0458984375,
-0.041015625,
-0.005889892578125,
-0.01611328125,
-0.0400390625,
-0.01397705078125,
0.0458984375,
0.032470703125,
0.06884765625,
0.0791015625,
-0.037109375,
-0.03076171875,
0.032470703125,
0.08984375,
0.0113525390625,
0.0247802734375,
-0.047119140625,
0.0615234375,
... | 5,343 | 5343 | |
polynomial stuff
July 16th 2008, 08:15 AM #1
Junior Member
Joined
Jul 2008
Posts
52
polynomial stuff
determine the polynomial f(x) that possesses the following characteristic :
1) f(x) is a polynomial of degree4
2) (x-1) is a factor of f(x) and f ' (x)
3) f(0) =3 and f'(0)= -5
4) the ram... | 4 | [
-0.0458984375,
0.06591796875,
0.0260009765625,
-0.0220947265625,
-0.0341796875,
0.036865234375,
-0.05029296875,
0.005035400390625,
-0.00982666015625,
-0.02099609375,
0.083984375,
-0.1357421875,
-0.00567626953125,
-0.0269775390625,
-0.0419921875,
0.04296875,
-0.09375,
-0.02807617187... | 5,344 | 5344 | |
inequality
Good morning, diana. Inequalities are cousins of Equations. They are almost the same, or they solve almost the same, except that in Inequalities, you need to change the sense or reverse the direction
of the inequality sign when you multiply or divide both sides of the inequality by a negative number or negat... | 4 | [
-0.048095703125,
0.08642578125,
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-0.054443359375,
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0.040283203125,
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0.0262451171875,
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-0.04052734375,
-0.00445556640625,
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0.08935546875,
0.0242919921875,
-0.003021240234375,
0.0625,
0.046142578125,
-0.038330... | 5,345 | 5345 | |
compute probability
August 25th 2007, 07:01 AM #1
Newbie
Joined
Aug 2007
Posts
3
compute probability
I need to work this math question, using the binomial probability formula,can someone help me figure it out. A 10-question multiple choice exam is given, and each question has five possible
answers. P... | 5 | [
0.06298828125,
0.0634765625,
0.057373046875,
-0.033935546875,
-0.06591796875,
0.0216064453125,
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0.0634765625,
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0.04541015625,
-0.0390625,
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0.00823974609375,
-0.0120849609375,
0.04052734375,
-0.07421875,
-0.033935546875,
-0.06640... | 5,346 | 5346 | |
MathGroup Archive: September 2008 [00628]
[Date Index] [Thread Index] [Author Index]
Re: Precision in Mathematica 6
• To: mathgroup at smc.vnet.net
• Subject: [mg92311] Re: Precision in Mathematica 6
• From: "David Park" <djmpark at c... | 5 | [
-0.05126953125,
-0.0096435546875,
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0.0478515625,
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0.048095703125,
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0.04052734375,
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0.031005859375,
-0.023193359375,
-0.035888671875,
0.039794921875,
-0.041015625,
0.04... | 5,347 | 5347 | |
Probability?
May 31st 2009, 03:07 AM #1
Newbie
Joined
May 2009
Posts
3
Probability?
Right, so I've got an upcoming exam tomorrow, and I just found out I'm stuck on probabilities (Not sure if that is what it's called in English).
Anyways, the question goes like this :
Troms skiing facility got 6... | 4 | [
0.08349609375,
0.0111083984375,
0.053466796875,
-0.006072998046875,
0.034423828125,
0.01611328125,
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0.048828125,
-0.0869140625,
0.08935546875,
0.05810546875,
-0.062255859375,
0.07275390625,
0.047607421875,
0.0162353515625,
0.0400390625,
-0.0262451171875,
-0.03198242187... | 5,348 | 5348 | |
eart
Determining Heart Rate
There are two different rates that can be determined on ECGs. The atrial rate is indicated by the frequency of the P waves and the ventricular rate is indicated by the frequency of the QRS complexes.
Normally, the atrial rate should be the same as the ventricular rate in the absence of di... | 4 | [
0.0096435546875,
-0.03369140625,
-0.0478515625,
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0.09033203125,
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0.01123046875,
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0.099609375,
0.040283203125,
-0.06494140625,
-0.12451171875,
-... | 5,349 | 5349 | |
How to solve this simple exponential equation?
February 25th 2011, 03:23 AM #1
Junior Member
Joined
Nov 2009
Posts
60
How to solve this simple exponential equation?
(16e^x) - (16e^2x) = 3
and the answer says that x = 0.25 but i can't see how you can get there? please help, much appreciated!! thanks... | 4 | [
0.015869140625,
0.045654296875,
0.014892578125,
-0.046142578125,
-0.01123046875,
-0.0576171875,
-0.000690460205078125,
0.01153564453125,
0.01019287109375,
0.046875,
0.1259765625,
-0.1240234375,
0.0751953125,
0.08056640625,
0.06787109375,
0.0130615234375,
0.06103515625,
0.0203857421... | 5,350 | 5350 | |
Ma
Elliptic Integration in Maple
Introduction
Integrals of the form , with , , and polynomials, often return answers in closed form. For example, when has degree 1 or 2, the integral can always be returned in terms of elementary f... | 4 | [
-0.01226806640625,
0.00640869140625,
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-0.017333984375,
0.0306396484375,
-0.0021514892578125,
0.134765625,
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0.0157470703125,
0.07470703125,
0.008544921875,
-0.03662109375,
0.... | 5,351 | 5351 | |
comparision test
December 31st 2009, 06:17 AM #1
Newbie
Joined
Apr 2009
Posts
16
comparision test
Use a comparison to determine whether the integral converges or diverges:
A $\int \frac{x^2e^x}{lnx}dx =$ from 2 to infinite
This integral diverges , but how can I show that using the comparison te... | 5 | [
0.026123046875,
0.00014209747314453125,
0.03271484375,
-0.048095703125,
0.038330078125,
0.01031494140625,
-0.044677734375,
0.05419921875,
0.006134033203125,
0.0089111328125,
0.033447265625,
-0.0009307861328125,
0.10205078125,
0.019775390625,
0.004913330078125,
-0.03125,
0.05029296875... | 5,352 | 5352 | |
Periodic Compounding
Compound Interest: Periodic Compounding
You may like to read about Compound Interest first.
... | 4 | [
0.0322265625,
-0.035888671875,
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0.0093994140625,
0.0301513671875,
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0.046875,
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0.09765625,
0.064453125,
0.039794921875,
-0.1025390625,
0.0751953125,
0... | 5,353 | 5353 | |
Weird natural log question
August 21st 2008, 05:36 PM
BogStandard
Weird natural log question
You are given the function
f(x) = x*lnx
(x > 0)
a) Find the solution(s) of the equation f(x) = 0
b) Find any minima/maxima that f(x) has.
c) Find the value(s) of x0 for which
INTEGRAL ( betwe... | 4 | [
-0.0205078125,
-0.001495361328125,
0.057861328125,
-0.06298828125,
0.039306640625,
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0.027587890625,
0.068359375,
-0.01904296875,
0.01318359375,
0.0281982421875,
-0.034912109375,
0.10009765625,
0.042236328125,
-0.05078125,
0.03955078125,
-0.0245361328125,
-0.100097656... | 5,354 | 5354 | |
MATLAB
MATLAB and Simulink resources for Arduino, LEGO, and Raspberry Pi
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.
%% Edge case: no vertices P = zeros(0,2); P2 = zeros(0,2); assert(isequal(simplify_polygon(P), P2));
%% Edge case: one vertex P = [1 1]... | 4 | [
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0.05078125,
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0.056640625,
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0.01361083984375,
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0.0458984375,
0.0186767578125,
-0.0164794921875,
-0.08349609375,
0.02... | 5,355 | 5355 | |
Eigenvalues of an Orthonormal Projection
April 12th 2011, 02:52 PM #1
Junior Member
Joined
Nov 2010
Posts
33
Eigenvalues of an Orthonormal Projection
Let P = the map which takes to its orthogonal projection onto S, a subspace of an inner product space V.
dimS = k, dimV = n
Find the eigenvalues ... | 4 | [
0.0174560546875,
0.0281982421875,
-0.033935546875,
-0.1181640625,
-0.01361083984375,
0.045166015625,
0.04150390625,
-0.04541015625,
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0.042236328125,
-0.0107421875,
-0.03955078125,
-0.0113525390625,
0.02392578125,
0.... | 5,356 | 5356 | |
MVT and Reimann Integral
December 16th 2009, 03:59 PM #1
Can someone please help me prove this? I've tried it to work it out in different ways and I'm beat. Will appreciate your help.
The problem reads:
Let $f$ be a continuous function on $[a,b]$. The length $l$ of the curve $y=f(x)$ on the interval $[a,b... | 4 | [
0.003082275390625,
-0.01416015625,
0.03173828125,
-0.0517578125,
0.0084228515625,
0.078125,
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0.06396484375,
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... | 5,357 | 5357 | |
There is no alternative!
The late Margaret "Tina" Thatcher claimed that "there is no alternative" to economic liberalism, and our own iron Frau Angela Merkel has defended her controversial fiscal policies for Europe with the
very same slogan. It is not surprising that politicians use such thought-terminating cliches to... | 5 | [
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0.005218505859375,
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... | 5,358 | 5358 | |
Modelling of traffic flow
Traffic flow modelling [deutsche Version]
Stochastic models have been successully applied to many different interdisciplinary problems. One important example is the modelling of traffic flow using cellular automata [1,2].
Cellular automata (CA) are models that are discrete in space, time ... | 4 | [
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-0.0076293... | 5,359 | 5359 | |
maximize and minimize
April 14th 2009, 12:33 PM #1
Newbie
Joined
Apr 2009
Posts
16
maximize and minimize
A wire 20 m long is cut into two pieces. One piece is bent in the shape of
an equilateral triangle, and the other is bent in the shape of a circle. How
should the wire be cut to maximize the t... | 4 | [
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0.022338... | 5,360 | 5360 | |
Cauchy Sequence
October 3rd 2010, 04:40 PM #1
Newbie
Joined
Sep 2010
Posts
24
Cauchy Sequence
Problem Statement:
Suppose that { $p_n$} is a Cauchy sequence and that there is a subsquence { $p_{n_i}$} and a number $p$ such that $p_{n_i} \rightarrow p$. Show that the full sequence converges, too; that ... | 5 | [
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0... | 5,361 | 5361 | |
Multiplying power series
I have a differential equation and I am solving it using power series. I am now at this point where I have got:
The reason I have got it like that was because my original equation read:
and so the minus 1 represents the x on the denominator, the y is obviosuly represented ... | 5 | [
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0.01806640625,... | 5,362 | 5362 | |
Guidelines and examples of array formulas
To become an Excel power user, you need to know how to use array formulas, which can perform calculations that you can't do by using non-array formulas. The following article is based on a series of
Excel Power User columns written by Colin Wilcox and adapted from chapters 14 ... | 5 | [
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Free Math Worksheets, Word Problems and Teaching Resources
We have already studied the quadratic formula,
The term which is inside the square root symbol is called the discriminant.
It is used to determine the nature of the roots of a quadratic equation. We can also determine the number of real roots for a quadratic ... | 4 | [
-0.000919342041015625,
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-0... | 5,364 | 5364 | |
Posts about mathematics on Math ∩ Programming
I don’t usually write promotional posts because I don’t enjoy reading them as much as I enjoy reading the technical posts. But I know that a lot of early graduate students and undergraduates read my
blog, and this would be of interest to many of them.
I just got back from ... | 5 | [
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trignometery bearing problem
A point P is 12 km due north of another point Q. the bearing of a lighthouse,R, from P is 135 degress and, from Q, it is 120 degress. calculate the distance PR.
Hello, Sohail! Did you make a sketch? A point $P$ is 12 km due north of another point $Q$. The bearing of a lighthouse $R$ from $... | 4 | [
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Conversion of Numbers |Binary Numbers to their Decimal Equivalents|Examples
Conversion of Numbers
Conversion of numbers from one system to another becomes necessary to understand the process and the logic of the operations of a computer system. It is not very difficult to convert numbers from one
base to another. We w... | 4 | [
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Calculus/Differentiation/Differentiation Defined/Solutions
1. Find the slope of the tangent to the curve $y=x^2$ at $(1,1)$.
The definition of the slope of $f$ at $x_0$ is $\lim_{h \to 0}\left[\frac{f\left( x_0+h \right) - f\left( x_0 \right)}{h}\right]$
Substituting in $f(x)=x^2$ and $x_0=1$ gives:
\begin{align} \lim... | 5 | [
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Show discontinuity in f(x,y)
September 25th 2012, 07:59 PM #1
Newbie
Joined
Sep 2012
From
Earth
Posts
18
Show discontinuity in f(x,y)
I have f(x,y) = 2xy^2 / (x^2+y^4) if (x,y) != (0,0) and 0 if (x,y) = (0,0).
I figured I could just find that the limit as 2xy^2 / (x^2+y^4) does not equal to 0, wh... | 4 | [
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GCD of Polynomials
March 2nd 2010, 07:41 AM
meggnog
GCD of Polynomials
I'm getting stuck on this problem.
Find the GCD d(x) of the following polynomials f(x), g(x) in F[x], and express d(x)=s(x)f(x)+t(x)g(x) for appropriate s(x), t(x) en F[x]
In this case, f(x)= x^2 + 2x + 2 and g(x)= x^2 + 1 for both F... | 4 | [
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0.0228271484375... | 5,370 | 5370 | |
integration
February 7th 2008, 03:33 PM
kid funky fried
integration
i am having some trouble with the following problem.
solve:
dy/dx= (x+1)/y-1), y>1
here is what is have done so far-
(y-1) dy/dx=(x+1)
S[(y-1)dy/dx]dx=S(x+1)dx
y^2/2 -y=x^2/2+x <-i feel this is where i made a mistak... | 5 | [
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0.0010452270507812... | 5,371 | 5371 | |
Calculus! #16: Early Transcendentals 2.2A
Okay, so now that you have the basic idea of what a limit is, we’re going to develop your intuition a little.
Section 2.2: The Limit of a Function
This whole chapter is to show you two things: 1) How a limit works on a function in general, 2) how to deal with limits in pract... | 4 | [
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Quadratic Programming
MINQ: General Definite and Bound Constrained Indefinite Quadratic Programming
MINQ is a Matlab program for bound constrained indefinite quadratic programming based on rank 1 modifications. It finds a local optimizer of the optimization problem
min fct = c^T x + 0.5 x^T G x
s.t. x ... | 4 | [
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Two statistical random variables combine to give Gaussian?
June 9th 2008, 02:58 AM #1
Two statistical random variables combine to give Gaussian?
Hi all,
Sorry for such a strange title. The question I am stuck at is...
Let x and y be statistically independent random variables with p.d.fs:
$p_x(\alph... | 5 | [
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vanishing points
The
circular points
encode the metric structure of the 2D plane. They are invariant to rotation, isotropic scaling and translation. If the plane undergoes a more general (e.g. affine or projective) transformation they
move to some unknown location. Metric rectification can be performed if we find the... | 4 | [
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-0.... | 5,375 | 5375 | |
Exact equation. Solve?
$<br /> (y^2-xe^{x^2}) dx + (2xy+cos(y)) dy = 0<br />$
First you need to check if $\frac{\partial}{\partial y}(y^2 - x\,e^{x^2}) = \frac{\partial}{\partial x}(2xy + \cos{y})$. $\frac{\partial}{\partial y}(y^2 - x\,e^{x^2}) = 2y$. $\frac{\partial}{\
partial x}(2xy + \cos{y}) = 2y$. So the conditi... | 5 | [
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0.0050048828125,
-0.05... | 5,376 | 5376 | |
Math Help
September 25th 2008, 11:01 AM #1
Junior Member
Joined
Sep 2008
Posts
61
1. Prove that if u is orthogonal to both v and w, then u is orthogonal to both v + w.
2. Prove that if u is orthogonal to both v and w, then u is orthogonal to sv + tw for all scalar s and t.
i think...
u * ... | 4 | [
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Does a diffeomorphism between manifolds induce a diffeomorphism on cotangent space?
I'm reading a book, and this seems to be true, but they don't say why, and I'm not sure.
I'm a little confused. While it is true that the cotangent space of a manifold naturally carries the structure of a smooth manifold (it's just a f... | 5 | [
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-0.054443... | 5,378 | 5378 | |
Convolution: A Systems
Convolution: A Systems Approach
These notes are taken from notes by Searl Dunn.
pdf version
Convolution is a powerful tool for determining the output of a system to any input. The Convolution Theorem is developed here in a completely mathematical way. On this page we will derive the
convolutio... | 4 | [
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-0.047119140625,
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0.... | 5,379 | 5379 | |
Euler's Method
Using the Euler method solve the following differential equation. At x = 0, y = 5.
y' + x/y = 0
Calculate the Numerical solution using step sizes of .5; .1; and .01
From my text book I have coded Euler's method
function [t,y] = eulode(dydt, tspan, y0, h)
%eulode: Euler ODE solver
% [t,y] = eulode(... | 5 | [
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-0.12890625,
-0.044921875,
-0.... | 5,380 | 5380 | |
Equation Factoring Calculator
Simplifying
(y + 9)(y + -2) = 4y
Reorder the terms:
(9 + y)(y + -2) = 4y
Reorder the terms:
(9 + y)(-2 + y) = 4y
Multiply (9 + y) * (-2 + y)
(9(-2 + y) + y(-2 + y)) = 4y
((-2 * 9 + y * 9) + y(-2 + y)) = 4y
((-18 + 9y) + y(-2 + y)) = 4y
(-18 + 9y + (-2 * y + y * y)) = 4y
(-18 + 9y + (-2y... | 4 | [
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0.01300048828125,
-0.078613281... | 5,381 | 5381 | |
Basic Design of Experiments
Home | Login | View Cart | Live Help is
Overview of Basic Design of Experiments (DOE) Templates
The DOE templates are similar to ... | 5 | [
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0.013916015625,
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-0.0322265625,
-0.0115966796875,
0.03271484375,
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0.04956054... | 5,382 | 5382 | |
Graphing and Writing Linear Functions
Linear Functions
Definition: A l i n e a r equation can be written in the form Ax + By = C.
Note: These equations are called linear because their graphs are always lines.
Question: Which linear eq... | 4 | [
-0.0625,
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0.020751953125,
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-0.0040283203125,
0.08837890625,
0.057861328125,
0.09521484375,
-0.09912109375,
0.0303955078125,
-0... | 5,383 | 5383 | |
escriptions &
Algebra 1 Unit Descriptions
The differences between an ex pression and an equation are further highlighted at the beginning of Algebra I. Properties, including the distributive property,
are used to simplify expressions, and used to factor basic expressions. The concept of absolute value is extended to s... | 4 | [
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-0.02... | 5,384 | 5384 | |
Casio FX-115ES
Manual
Preview of first few manual pages (at low quality). Check before download. Click to enlarge.
Download (English)
Casio FX-115ES, size: 923 KB
Instruction: After click Download and complete offer, you will get access to list of direct links to websites where you can download this manual.
Ab... | 5 | [
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0.018798828125,
0.006591796875,
-0.056884765625,
-0.078125,
0.10253906... | 5,385 | 5385 | |
Pragmatic Programming Techniques
One common problem of machine learning is the "
curse of high dimensionality
". When there are too many attributes in the input data, many of the ML algorithms will be very inefficient or some of them will even be non-performing (e.g. in nearest neighbor computation, data
points in a ... | 4 | [
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Solve in positive integers $n!=m(m+1)$
Take the 2-minute tour ×
MathOverflow is a question and answer site for professional mathematicians. It's 100% free, no registration required.
Is anybody know a solution of this problem? (Sorry, I've missed one summand in the previous post.)
$3!=2\cdot3$ ?
–
Joel Dav... | 5 | [
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0.0183... | 5,387 | 5387 | |
55. lapack
Computes the singular value decomposition (SVD) of a matrix A, comprising the singular values and, optionally, the left and right singular vectors. All elements of A must be integer or floating
point numbers. A might or might not be square (same number of rows and columns).
Let m be the number ... | 5 | [
-0.046875,
-0.01373291015625,
-0.10888671875,
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0.026123046875,
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0.0... | 5,388 | 5388 | |
Properties of Logarithms
Examples
Expand
Solution:
We have
ln(3x^3)^1/2 = 1/2 ln(3x^3) (Property 1)
= 1/2ln3 + 1/2lnx^3 (Property 2)
= 1/2ln3 + 3/2lnx. (Property 1)
Exercises: Expand the following:
A. log[(x^2(x - 4)^5)/100]
B. log[3](sqrt(x^5/9))
Example:
Write the following with only one logarithm:
3l... | 4 | [
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-0.010498046875,
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0.0283203125,
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0.014404296875,
0.016357421875,
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0.09619140625,
-0.10595703125,
0.07763671875,
... | 5,389 | 5389 | |
How to find points of intersection of a parabola and an exponential w/o graphing?
Hey mathhelpforum.com, this is my first post! And I need some help with math! The equation is 3^x+5=x^2-5, we aren't supposed to be able to solve them yet non-graphically, so I wonder if it is even
possible, if so, how?
Re: How to find ... | 5 | [
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-0.040283203125,
-... | 5,390 | 5390 | |
pentprim
Pentomino Primes was solved by Joseph W. DeVincentis and Lee Kaplan ("This was a great puzzle.")
The solution to the puzzle is:
23452
43214
15521
31433
12455
45214
13351
32422
25315
15433
41354
52142
A=2, B=5, C=11, D=13, E=17, F=23, G=29, H=31
J=37, K=41, L=43, M=47, N=53, P=61, Q=79, R=83
Notes from the ... | 4 | [
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-0.0177001953125,... | 5,391 | 5391 | |
ethod
MATH2071: LAB 2: Explicit ODE methods
┌──────────────────────────────────┬─────────────┐
... | 5 | [
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0.04... | 5,392 | 5392 | |
Ratio of differentials to partial derivatives of two (implicit?) functions
March 15th 2011, 12:00 PM #1
Member
Joined
Oct 2009
Posts
128
Ratio of differentials to partial derivatives of two (implicit?) functions
Hi.
So, given $f(x,y,z) = 0$ and $g(x,y,z) = 0$
Show that $\frac{dx}{\frac{\delta (... | 4 | [
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0.0251... | 5,393 | 5393 | |
MATH 240
Written by
Professor John Beachy,
Department of Mathematical Sciences,
Northern Illinois University
MATH 240
Using a calcula... | 5 | [
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-0.091796875,
0... | 5,394 | 5394 | |
MathGroup Archive: August 2007 [00053]
[Date Index] [Thread Index] [Author Index]
Re: Numerical integration
• To: mathgroup at smc.vnet.net
• Subject: [mg79675] Re: [mg79621] Numerical integration
• From: Bob Hanlon <hanlonr at cox.ne... | 5 | [
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0.006195068359... | 5,395 | 5395 | |
lattice pie - another puzzle stuck on
November 26th 2008, 11:39 AM #1
Junior Member
Joined
Oct 2008
Posts
57
lattice pie - another puzzle stuck on
is it possible to have an equilateral triangle in the plane all of whose vertices lie on the integer lattice{(m,n)|m,n are integers}? If so, what is the short... | 5 | [
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... | 5,396 | 5396 | |
CXC Math Explained
Updated on April 12th, 2012: Added some video explanations
This question tests your knowledge of numbers, sets and geometric constructions.
In part (a) we are given a universal set \(U\) defined as
$$
U = \{ 51, 52, 53, 54, 55, 56, 57, 58, 59 \}.
$$
Now, if \(A\) and \(B\) are subsets of \(U\), s... | 4 | [
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-0.07568359375... | 5,397 | 5397 | |
Mathematics 307
Vector calculator routines in calc.inc
Vector addition, subtraction, scaling
Dot product, length
Cross product
Matrix addition, subtraction, scaling
Matrix multiplication, matrix applied to a vector
Matrix transposition
Solving systems
Row operations
Matrix inverses
2D and 3D rotation matrices
Determ... | 4 | [
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-0.... | 5,398 | 5398 | |
Finding the Derivative...
March 2nd 2010, 08:11 AM #1
Member
Joined
Dec 2009
Posts
96
Finding the Derivative...
We are just being introduced the the derivative concept and I was wondering if I understand this correctly.
We got the formula f(x) lim h->0 (f(x+h) - f(x)) / h
One example says: Find... | 4 | [
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-... | 5,399 | 5399 |