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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11
votes
0answers
421 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 ...
6
votes
0answers
194 views

Writing math for PC and iPad

I have often searched for PC and iPad on software and apps that are suitable for writing math up to an advanced level, supporting all mathematical scripts, symbols, formulas and operators. Please ...
6
votes
0answers
139 views

Tool that draws Venn diagram from subset relation

Is there a tool (LaTeX, JavaScript, Mathematica..) that allows one to draw Venn diagram automatically from subsets relations, e.g. $$A\subset A+B$$ $$A\subset C$$ $$C\subset C+D$$ $$B \not\subset ...
6
votes
0answers
131 views

Educational software for graduate mathematics

Our university uses computer software to help automate and expedite the learning process for basic math classes (college algebra, trigonometry, precalculus, etc.). Software such as this provides ...
5
votes
0answers
262 views

Note-taking software which is capable of representing mathematical relation

After quite a few studying experiences (both alone and following a class, studying topology, algebra, analysis, measure theory, differential geometry) I have acquired a lot of notes that I have either ...
5
votes
0answers
102 views

Is there a proper etiquette for asking an author for their (mathematical) software?

This may not be the correct place to ask such a question. I have read a mathematical paper on multiclass total variation clustering. I wish to use the algorithm in the contents to compare with another ...
4
votes
0answers
43 views

Are algorithms for elimination of quantifiers over the reals practical?

I wanted to find the semialgebraic set in the $(a_0,a_1,a_2,a_3)$ space that guarantees that there exists at least one real root of the general polynomial equation of degree 4. For that purpose, ...
4
votes
0answers
85 views

Using sage to test for squares in residue fields

Let $K$ be a number field, $x \in \mathcal{O}_K$, and $\mathfrak{p} $ a prime of $K$. I want to find out using sage whether or not the reduction of $x$ modulo $\mathfrak{p}$ is a square in the ...
4
votes
0answers
93 views

Complex graphs in 3D

Does anyone have red-green 3D software for plotting 4D graphs in 3D with 3D glasses? I've seen a 4D hypercube done this way and it's very revealing...
3
votes
0answers
45 views

What are some good graphics programs for depicting hyperbolic geodesics?

I'm looking for some software that allows one to draw accurate pictures in hyperbolic space. In particular, I want to be able to specify pairs of points and generate the geodesic between them, in ...
3
votes
0answers
76 views

Software for Braid Groups

I am looking for software/online tool that works on Braid Groups. I am aware that there are resources that allows you to draw braids by imputing generators or detect whether two braids are equivalent ...
3
votes
0answers
118 views

Highly Customizable Graphing Software for Algorithmic Art

For my local hacker/maker space I want to do some etched copper plates that have stylized algorithmic functions on them. If you've seen etched PCB circuits then you're familiar with what I'm talking ...
3
votes
0answers
62 views

Learning Calculus (and beyond) using mathematics software

I have a programming background and have recently got quite interested in electronics and signal processing. After picking up just about every book/resource on those two subjects, it's pretty clear ...
3
votes
0answers
147 views

computing a difficult integral using software

I'd like to compute the following integral. I've tried SAGE but it just runs for 15 minutes then stops.. not sure what that means. If anyone wants to take a crack with mathematica or anything, please ...
3
votes
0answers
416 views

Microsoft Surface for reading textbooks and writing math by hand?

As a PhD student I am increasingly wanting to get a tablet and the new Microsoft Surface tablets appeal to me greatly as I am a big fan of the UI. I wonder if anybody has got hold of it yet and what ...
3
votes
0answers
86 views

Algorithm for generating random regular graphs in Maple

In Maples package RandomGraphs, there is a method called RandomRegularGraph(n,d) which takes a number of vertices $n$ and a degree $d$ and returns a random $d$-regular graph on $n$ vertices. Does ...
3
votes
0answers
175 views

How to solve Line integral over a p0lynomial of order $n$ programatically (in java)

I want to solve line integral over an polynomial of order $n$. i.e. Integration of $ds$ over an bounded polynomial ($a+bx+cx^2+dx^3+\ldots$) where $ds$ is an small element on the curve in $x$-$y$ ...
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 ...
2
votes
0answers
37 views

Why does this odd glitch exist with graphing programs?

In Grapher on Mac and the TI-84's built-in graphing program, there is a problem with imaginary numbers. If I input $ i\sqrt {x}$, the graph ends up looking like this, even though it ought to look like ...
2
votes
0answers
62 views

Finding newforms with Sage

I am new to Sage and modular forms. I have some conceptual questions. When I write sage: S = CuspForms(Gamma0(55),2,prec=14) sage: S.new_subspace().basis() ...
2
votes
0answers
134 views

Software to solve basic set equations (in algebra of sets)?

What symbolic math software is able to solve basic set equations? E.g. $X \setminus A = C \setminus X $, for $X$
2
votes
0answers
240 views

Math software for plotting phase portraits

I'm looking for math software which is possible to plot phase portraits for ODE and systems of differential equations. Is there a software which can create not only simple 2D phase portrait plots but ...
2
votes
0answers
55 views

What kind of structures can I count using Alg?

I'm interested in counting structures that satisfy certain constraints up to isomorphism. For example, I might want to know how many clutters there are on $n$ vertices. The only way I can think to ...
2
votes
0answers
54 views

Managing research ideas

I apologize if my question is not appropriate for this site, but I am interested in the opinion of mathematicians... in fact I would like to learn as many different opinions as possible. The question ...
2
votes
0answers
91 views

Using Macaulay 2 to find free divisors.

Given a hypersurface $D = h^{-1}(0)$ for some polynomial $h \in \mathbb{C} [x,y,z]$ I want to be able to use Macaulay 2 to tell if it's a free divisor or not. What I've got so far; Let $h_{p}$ be ...
2
votes
0answers
95 views

What type of graph is this. I shows kind of cause and effect.

I am trying to create a chart like this that shows item 1 effects items 2 and 4 type chart. I didn't really know where to post this so I thought mathematics would be the right place because of the ...
2
votes
0answers
182 views

What would be the most useful BOINC project to help researchers?

There are some distributed computing projects like BOINC? What would be the most useful BOINC project to help mathematicians or are those just waste of energy and time?
2
votes
0answers
94 views

Is there a (hopefully free) graphing utility BESIDES mathematica that can graph log polar coordinates?

This is my first post to the forum. I have had a good experience with other stackexchange fora, so I have high hopes for this one. I have looked online and can not seem to find the software described ...
2
votes
0answers
116 views

Can 24 lines on a cubic surface be realized as 24 identical spiral rods?

It's possible to put 24 lines on a cubic surface. 27 lines is possible, but I don't have a great picture for that surface. It turns out that the 24 lines can be built with Zome. I'm thinking that ...
2
votes
0answers
54 views

Closed polygonal chains

I want to work with closed polygonal chains, specifying the vertices and further which edges intersect. Does anyone know a good way of working with these things on a computer so I get some sort of ...
2
votes
0answers
84 views

Principal Component Analysis software

I'm looking for a (non-MATLAB) software that can process a image using the PCA algorithm and output it like this: Regards.
2
votes
0answers
152 views

Numerical Integration

For $r=1$, how to calculate the following integral numerically. $$\frac{8}{\sqrt{3}r^2}\int_{x=0}^{\frac{r}{2}}\int_{y=0}^{\sqrt{3}(\frac{r}{2}-x)}\prod_{i=0}^2\left(1-\frac{2}{\pi} \cos^{-1} ...
2
votes
0answers
36 views

What is a good tool for this job involving the prime spiral?

I'm interested in studying the prime spiral interactively. This question talks about some interesting patterns in the spiral involving quadratic equations. The idea I had was, write a program that ...
2
votes
0answers
369 views

Fastest integer matrix determinant software

I need to calculate vast numbers of determinants of integer matrices (size around 30x30 to 50x50) and would like to know the fastest software for this. It must use exact integer arithmetic as the ...
2
votes
0answers
519 views

Is there software that interpolates/extrapolates data using a discrete Fourier?

I've read various methods of Fourier interpolation and extrapolation detailed in articles such as Interpolation and Extrapolation Using a High-Resolution Discrete Fourier Transform—so what I'm ...
1
vote
0answers
17 views

Hirota's Bilinear Form

My query is related to conversion of PDE into bilinear form using some transformation. The detailed description about bilinear forms can be seen in book of Yoshimasa Matsuno . The bilinear operator ...
1
vote
0answers
20 views

How to perform a quasiconvex optimization

I have a quasiconvex objective function $f:\mathbf{R}^n\rightarrow \mathbf{R}$ which I would like to minimize over a simplex $S\subseteq \mathbf{R}^n$. I have looked pretty hard but have been unable ...
1
vote
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 ...
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 ...
1
vote
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?
1
vote
0answers
76 views

What is an equivalent version of maple software in linux?

What is an equivalent version of maple software in linux? From the comment by james, I am editing this post. Maple is not a free version as i have searched in google. I need equivalent ...
1
vote
0answers
77 views

rotation matrix - satellite control system

I am in charge with developping a satellie control system. There is something that I either understood incorrectly or either is wrong in the explanation. I am checking if I am able to get the values ...
1
vote
0answers
23 views

On Procedure Constrained Matrix Factorization

Given rank $r$ $A\in\Bbb R^{n\times m}$, is there a procedure to find $XY=A$ such that $X\in\Bbb R^{n\times r}$, $Y\in\Bbb R^{r\times m}$ with property that $\max_{i,j}|x_{i,j}|$, ...
1
vote
0answers
63 views

Lower bounds on possible integer relations from the PSLQ algorithm

For the equation: $$ \sum_{i=1}^na_ix_i=0 $$ where all $x_i$ are real numbers and all $a_i$ are integers, the PSLQ algorithm can either find an integer relation or give lower bounds on the norm of ...
1
vote
0answers
165 views

Any online Legendre polynomial calculator?

Do you know if there is any online calculator to calculate Legendre polynomial's coefficients? And combined with a graphing utility would also be desirable. Thank you for your time and help.
1
vote
0answers
192 views

Are there any programs like family echo that I can use to map mathematics?

Family echo is an online program that allows one to make a family tree, if nothing is clicked it shows most of the family tree as it is, but if one clicks a name one can see clearly all the ancestors ...
1
vote
0answers
64 views

Mathcad doesn't calculate an expresion

could anyone help how to force Mathcad to calculate an expression. After some steps I got such result: http://i.imgur.com/7FtprAI.png but how can I get the result of such expression? Thank you!
1
vote
0answers
51 views

Drawing Phase planes with one input, rather than long scripting

What software can be used to draw phase planes easily? I want to input some $\begin{pmatrix}x_1 \\ x_2\end{pmatrix}=$blahblah, and have it plotted with or without initial conditions. Is there any ...
1
vote
0answers
252 views

Time series library in Java

I'm looking for a library to do some time series analysis in Java but I can't find anything suitable. I've found plenty of libraries such as Math3 of JSAT but there's much I can you for my problem. As ...
1
vote
0answers
116 views

Any complex analysis book with programming assignment and exercises?

All: I had studied complex analysis long time ago. Now, I would like to review some material, particularly about Analytic function, Riemann zeta and Analytic function. I have been a software ...