For help with mathematical questions arising from software such as Maple, MATLAB, Mathcad, Pari/GP, R, and the WolframAlpha website, etc. Consider posting questions about Mathematica at the Mathematica StackExchange instead. For GAP, SAGE, and MAGMA, one might use tags (computer-algebra-systems), ...

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0answers
49 views

Lagrange theorem demonstrations in GAP with cosets and cardinalities? [duplicate]

The goal of this question is to introduce basic group theory concepts with GAP: examples about alternating groups, cyclic groups and demonstrate the Lagrange theorem $[G:H]=\frac{\#G}{\# H}$. ...
1
vote
1answer
478 views

MathCAD: composite function, (f∘g)(x)

So sorry for the dumb question, but I can't figure this out and I have been searching for the answer and can't find it... and at this point I no longer know what to Google. Using MathCAD, how do I ...
64
votes
16answers
73k views

Online tool for making graphs (vertices and edges)?

Anyone know of an online tool available for making graphs (as in graph theory - consisting of edges and vertices)? I have about 36 vertices and even more edges that I wish to draw. (why do I have so ...
4
votes
1answer
47 views

How can I draw plane distributions in $\mathbb{R}^3$?

I see so many nice pictures of contact structures, integrable plane distributions, etc., in manuscripts and online and I have absolutely zero idea how they're made. For example, the following image ...
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votes
1answer
33 views

Can you graph these kinds of equations with any free programs?

http://www.walkingrandomly.com/?p=19 I've been trying to find a way to graph this function without buying Mathematica but I haven't found a way. It might be possible with the free online Wolfram ...
1
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0answers
40 views

Topology libraries

I have been searching around for a library in some programming language (Java/C++/Haskell/python,etc) that can define topological entities and manipulate them. The only references I've found are to ...
12
votes
1answer
523 views

Best program for creating educational math animations?

I'm looking for recommendations on what program to use for creating mathematical animations. These animations will be used in creating educational videos for high school math -- Trigonometry first, ...
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votes
2answers
85 views

If $h$ divides $|G|$, not necessary that $G$ has a subgroup of order $h$

if $h$ divides $\# G$, then it is not necessarily that $G$ has a subgroup of size $h$ which can be related to Lagrange Theorem $[G:H]=\frac{\#G}{\# H}$ in the case when the subgroup exists, ...
0
votes
2answers
308 views

What computer program can calculate Kemeny-Snell's median?

Unfortunately, I didn't find any computer realization for computing Kemeny-Snell's median.
0
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1answer
30 views

Group theoretic multiplication table analysis software?

Consider a number of different multiplication tables, the results from a graphical parametrisation problem. The goal is to understand which group generates each table or sufficiently close to ...
2
votes
1answer
109 views

AUTO Software for ODE's: references or forums?

I'm learning the AUTO software that does numerical continuation of ODE's by following these two references: The official manual found here www.dam.brown.edu/.../auto07p.pdf Lecture notes found at ...
2
votes
0answers
122 views

NAUTY algorithm [closed]

NAUTY is a Graph Isomorphism(GI) software developed by Brendan McKay to test isomorphism of Graphs. It provides a practical solution to the Graph Isomorphism problem. It is a program for isomorphism ...
1
vote
2answers
53 views

Software to calculate an integer sum?

There is a result I want to calculate, but I don't know if there is any software that can help me with this. Anyone knows what could I use to help me? Any answer is much appreciated The formula is ...
0
votes
0answers
21 views

Graph Software, figures

I'm making my own Calculus notes what (free) software would you recommend to be able to make figures like these ones For instance I would like to be able to represent graphically the ...
3
votes
3answers
119 views

What's the equation for a rectircle? (Perfect rounded-corner rectangle without stretching on only one dim)

The equation for a rounded square seems to be: $x^4 + y^4 = 1$ You can make the radii smaller by increasing (over the even integers) the exponents in the equation. Here's a picture: Wolfram Alpha ...
0
votes
1answer
13 views

Having trouble drawing an arc using atan2 and specified range of arc.

I'm writing code. My arc invariant is: $$ \theta_0, \theta_1 \in [-2\pi, 2\pi], \\ \theta_1 - \theta_0 \leq 2\pi $$ where $\theta_0$ is the arc beginning angle and $\theta_1$ is the arc end angle. ...
0
votes
1answer
27 views

Computation of minimal axis-aligned bounding box of an arc segment.

I'm trying to compute the minimal bounding box of an arc segment so when it's time to render it, I only have to examine pixel coordinates within a minimal rectangular region. The code below covers ...
6
votes
7answers
6k views

Can One use mathematica or maple online?

Is it possible to use some of these algebra packages online ? I have some matrices that I would like to know the characteristic polynomial of. Where could I send them to get a nicely factorised answer ...
0
votes
1answer
27 views

Software to find eigenvalues

Is there a software (or website) that is free which can find eigenvalues but with arbitrary constants, say $a,b>0$ being involved?
1
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1answer
61 views

The fastest Gröbner basis algorithm available?

for my undergraduate thesis I'm (pseudo) replicating algebraic attack on certain cryptosystem using gröbner basis approach. The heart of original attack was F5/2 algorithm (since the cryptosystem is ...
0
votes
3answers
42 views

How to solve the following system of partial differential equations?

I have a system of partial differential equations: \begin{align} & u(a,b,c) \frac{\partial y}{\partial c} = \frac{4}{3} ab, \\ & u(a,b,c) \frac{\partial y}{\partial b} = \frac{2}{3} ac + 2 ...
1
vote
1answer
34 views

Maple solving inequalities within a range

I have no troubles to solve an inequality using this command: solve(df(x) > 0, x) However, I need to solve it within a specified range (-1..1). Is that ...
2
votes
1answer
159 views

Where can I find a good drawing software?

Maybe this is a little off-topic but often, when writing articles, I find myself in need of a good drawing software (for MAC or Windows) that would allow me to draw figures like the one below: Do ...
1
vote
0answers
27 views

Adequate software to plot grids, numerical stencils…

Do you know any software (online or not) easy to understand and appropriate to create this kind of plots? I would like the image to be vectorized, can write subindices, arrows, dots and so on to ...
3
votes
1answer
60 views

Fibonacci sequence digits

We define the Fibonacci sequence by $F_{n+2}=F_{n+1}+F_{n}$, with $F_0=0$ and $F_1=1$. How to compute the last $30$ digits of $F_{2^{200}}$ for instance? can we use Python?how?
3
votes
2answers
1k views

Indefinite integral of absolute value

When I looked up about absolute value on Wikipedia, I found that the antiderivative of $|x|$ is $\frac12 x|x|+C$. I am able to find the derivative of $|x|$ by treating the function as $\sqrt{x^2}$, ...
1
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0answers
29 views

Number animation in geogebra?

Is there a way to animate this "triangle" in Geogebra so that the rows are expanding from the top to the bottom?
2
votes
1answer
44 views

Algebraic geometric software to investigate polynomials with graph theoretical origin?

My teacher uses Singular and Macaulay2 for specific problems in Algebraic geometry but she was unaware which software would be best suited to investigate polynomial basis problems where their origin ...
14
votes
10answers
7k views

What are some good iPhone/iPod Touch/iPad Apps for mathematicians? [closed]

There are lots of good apps for teaching mathematics to children but I would like to learn about apps for undergraduate/graduate/research levels. Helper questions Any algebra system (like ...
4
votes
3answers
253 views

OCR: some App to calculate the derivative on a line graph with iPhone/iPad?

Problem I have a set of points like the ones shown on the right hand side of the image. So for each 'Ships Head' there is a corresponding value for 'Deviation'. In this example we can treat west ...
5
votes
1answer
837 views

How can I add equations to services such as Keynote or Pages in iPad?

Mathematical formulae are very poor in services such as Windows Word, Keynote, Pages -- or many times totally missing, not to speak about compability -problems. So how can I create and add formulae to ...
11
votes
0answers
422 views

Approximating a blackboard with long-distance communication

From time to time I need to talk about mathematics with my advisor remotely. I would like to approximate writing on a blackboard together as closely as is reasonable. What are some technological ...
0
votes
0answers
149 views

Applet to find least-crossings drawing for an input graph

Is there a convenient online applet that allows me to draw a graph, after which it outputs a plane drawing of an isomorphic graph that has (approximately) the least number of crossings among all ...
2
votes
1answer
79 views

Online visualization tool for planes (spans in linear algebra)

I would like to visualize planes in 3D as I start learning linear algebra, to build a solid foundation. Surprisingly, I have been unable to find an online tool (website/web app) to visualize planes in ...
0
votes
0answers
63 views

Software to learn limits without l'Hôpital's rule

Can someone point me to good software/website that solves limits step by step without using l'Hôpital? Currently I use Maple and/or WolframAlpha, but both use l'Hôpital's rule and I can't force them ...
0
votes
3answers
70 views

Is there any maths software to help determine the formulas of given curves?

I am looking for a piece of software if it exists, which would allow me to give 2 points on a graph, (say (0,0) and (100,100) as an example), it would then connect the 2 points with a straight line, ...
20
votes
8answers
12k views

Best Math books or apps for adults to learn math from the beginning

I lost a possible job because I didn't know how to multiply and subtract negative valued integers. I also don't know how fraction manipulation works. What reference books can I read that can help for ...
1
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1answer
37 views

How to create a matrix in pari/gp [closed]

How does one create a matrix in $\texttt{pari}$? I currently understand how to create a vector: ? vector(6,n,n^2) %1 = [1, 4, 9, 16, 25, 36] I also know how ...
1
vote
4answers
278 views

Best program for 3D plotting

I've hit a roadblock with pgfplots where it has difficulty plotting multiple functions at the same time in 3D. As it states in the manual on page 114, "it cannot combine different \addplot commands, ...
1
vote
1answer
12 views

What PC programs or iPad applications are there which allow you to plot cylindrical/spherical polar graphs?

I've been trying to get my head around the use of cylindrical and spherical polars to plot graphs. I feel that the easiest way to do this would be to try plotting some, but I'm struggling to find a ...
12
votes
2answers
506 views

Math-related open source software to contribute to

I'm interested in finding a math-related open source project that I can contribute to. I've studied maths and stats at undergraduate level, but I'm a professional software developer and I'll have some ...
1
vote
1answer
49 views

Free software (online is better) to divide large numbers?

This may be a strange request, but I need to divide the number $$\begin{align} ...
3
votes
3answers
50 views

Is there a platform I can use to do my Maths assignment?

If one wants to do Maths assignment on the computer, how would he/she go about doing it? I want to be able to use all the mathematical symbols, matrices, formulas and whatnot- the same way ...
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votes
2answers
70 views

What software tool should I use to draw graphs? [closed]

I am writing a latex document, and I have a technical lemma that I would like to illustrate with an image. The field is graph theory, and the lemma has several cases, so I want to draw a chart ...
0
votes
1answer
37 views

softwares or programming language uesd for math calculations?

Is there any software or programming lang for getting maths answers step by step? when I type the question it should give a brief answer, for example when i type (2+2)*2 it should show me (2+2)*2 ...
4
votes
2answers
144 views

Small version of the GAP-software or online tool available?

If I only want to calculate the number of groups of order $n$ for large $n$ , especially cubefree $n$ : Is there a small version available or an online calculator ? Or do I simply have to download ...
0
votes
2answers
13 views

Try to obtain the exponent of a variable in Maple.

Are there some function $f$ in Maple such that $f(K[1,2]^{1/3}) = 1/3$? Any help will be greatly appreciated!
0
votes
2answers
33 views

“Invalid sequence” in Maple

I tried to define a procedure in Maple as follows. removeAnElementInList:=proc(i, l) local r, j; r:=[]; for j from 1 to lengthOfList(l) do ( if(j<>i) then r:=append(r, l[j]) end if ) ...
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4answers
98 views

Creating fractals through computers

What are some beginner softwares for creating fractals on computers?
2
votes
0answers
29 views

How to obtain $K$ in $K[1,2]$ in Maple?

I would like to obtain the letter $K$ from $K[1,2]$ in Maple. I tried to use op(K[1, 2]). But I get $[1,2]$. Are there some function $f$ in Maple such that $f(K[1,2]) = K$? Any help will be greatly ...