For help with mathematical questions arising from software such as Maple, MATLAB, Mathcad, Pari/GP, R, and so on. Consider posting questions about Mathematica and WolframAlpha onto Mathematica StackExchange instead. For GAP, SAGE, and MAGMA, use computer-algebra-systems.

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39
votes
14answers
3k views

'Linux' math program with interactive terminal?

Are there any open source math programs out there that have an interactive terminal and that work on linux? So for example you could enter two matrices and specify an operation such as multiply and ...
1
vote
1answer
30 views

Scaling axis on Mathematica's plots

I'm trying to get the plot below only I want the ratio y:x to be 1:1 instead of 2:1. I want the ellipse to look tall and slim instead of short and fat. Here's the code line if you want to copy and ...
1
vote
1answer
161 views

inverse Laplace transfor by using maple or matlab

I want to use inverse Laplace transform to F function by using maple or matlab. However I cannot get any answer. I know the answer from table but I want to use one of softwares. from table: ...
0
votes
0answers
9 views

Form Poset from (Non-zeta) Matrix

I have a matrix (well, really a table) of values that are the results of various indicator systems. Naturally, each system is slightly discordant, so no one true ranking exists. I'm looking to form ...
1
vote
2answers
103 views

Tools for understanding Abstract Mathematics

I want to explore the concepts of Groups, Rings and Fields for practical application. Are there beginner-friendly tools available to simplify, accelerate, verify the understanding of concepts in ...
2
votes
3answers
177 views

Recommendations for Commutative Algebra Software?

I'd like a software that I can use to work with commutative algebra, specifically to figure out S-Polynomials, Buchberger's Algorithm, etc. I have Mathematica; if anyone could refer me to a package, ...
1
vote
1answer
70 views

Implicit plot3d in Sage Math

I am currently trying out using the math software Sage. I am currently in a Calculus III class at my university so I was hoping to be able to leverage its 3D graphing capabilities. In one particular ...
1
vote
1answer
34 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
1answer
145 views

Software for GCSE and further maths

I am currently in my last year at school, but am pretty sure that I will taking Maths in college next year. I have cerebral palsy and currently relay on my teaching assistants to scribe for me ...
1
vote
1answer
101 views

Interactive Equation editor with Latex syntax

I was using the built in equation editor used by Pearson's "MyLab and Mastering" physics course, and I really like how it's both interactive and uses Latex syntax to insert equation elements. ...
0
votes
2answers
20 views

Paramertized ellipses

I have $a^2 = (4x-8)^2 + 4y^2$ and $b^2=(4x+8)^2 + 4y^2$ which I switch between every $t=\frac{n\pi}2$ How do I draw this touching the origin, and moving outwards, noting that ...
1
vote
0answers
38 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 ...
0
votes
1answer
19 views

Converting to Power of Ten Representaion

For very large calculations Wolfram Alpha offers a variety of different representations of the number. One of these is the number written in the form $10^{10^n}$, where $n$ is usually some long ...
0
votes
0answers
6 views

Statics of a Rigid Body

The I-beam A-B shown below is supported by a cable at B and a pin at A. The cable is inclined at an angle, θ = 23° to the longitudinal axis of the beam. The beam supports a load, m, of 8 kN at a ...
0
votes
1answer
34 views

Is there free software that can be used to generate a chain rule tree graph?

I'm in multivariate calculus and we just finished up the chain rule. One of the methods for solving this is to produce a tree graph and traverse it. An example would be this tree graph taken from my ...
0
votes
4answers
47 views

Recommendation for free graph plotter that can produce beautiful graphs

Can anyone please recommend a good free graph plotter that I can download. I am looking for a program that can produce neat looking graphs with all the axes, grids and that can plot many different ...
0
votes
2answers
89 views

How I can calculate this number

How I can calculate exactly this number: $$ \frac{(\sqrt{3}+2)^{2^{333111366}}+1}{(2^{333111367}-1)(\sqrt{3}+2)^{2^{333111365}}} $$ Several softwares do not support this number.
3
votes
1answer
109 views

On Hilbert Class Polynomial

Is there any open source software which computes Hilbert Class polynomial of an imaginary quadratic fields? Thank you in advance
7
votes
1answer
159 views

How to properly use technology for back-of-the-envelope calculations?

I'm usually quite eager on using technology wherever sensibly applicable, however whenever I make some calculations I still end up using a pen and paper, by now resulting in an entire pile of sheets ...
25
votes
23answers
1k views

Can you recommend a decent online or software calculator?

I'm looking for an online or software calculator that can show me the history of items I typed in, much like an expensive Ti calculator. Can you recommend any?
3
votes
2answers
316 views

Learning to use MAGMA

I'm trying to learn to use MAGMA for research in group theory, but it's been slow going. I've been using the MAGMA handbook provided online, but it's rather hard to learn with. I feel like it's hard ...
1
vote
1answer
69 views

Mathematica Question regarding NSolve

I'm trying to solve for 2-cycles for the equation $$x=xe^{r[1-x]}$$ using Mathematica. I've tried using NSolve, FindRoot, and Solve. When I use NSolve I input it as $$\textrm{NSolve}[xe^{r[1 - xe^{r[1 ...
2
votes
3answers
157 views

Software to calculate Alexander polynomials

Is there any software for Windows that I can use to calculate the Alexander polynomials of links?
0
votes
3answers
105 views

Plot the graph of a discontinuous function of two variables using Maple

I want to plot the level curve of $xyz = 1$; According to wolfram alpha the plot should look like this; But instead I end up with; Here's my Maple code. I'm sure it's because the function is ...
0
votes
0answers
48 views

Modified Lucas-Lehmer Test

Conjecture (Modified LL) Let $M_p=2^p-1$ such that $p$ is odd prime and $p\equiv 5 \pmod{6}$ . Let $S_i=S_{i-1}^8-8\cdot S_{i-1}^6+20\cdot S_{i-1}^4-16 \cdot S_{i-1}^2+2$ with $S_0=4$ , then $M_p$ ...
0
votes
1answer
33 views

Where can I find a binary calculator that can do exponentiations, roots and logarithms?

I've searched on Google, but all I found was binary calculators that can do additions, subtractions, multiplications and divisions, nothing else.
0
votes
3answers
1k views

Calculator for Arithmetic in Alternate Bases

In the course I'm currently teaching, we're testing our understanding of elementary school arithmetic algorithms by working in base 5. Each day, I write up several example problems for them to try ...
2
votes
0answers
53 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
7answers
656 views

Software to display 3D surfaces

What are some examples of software or online services that can display surfaces that are defined implicitly (for example, the sphere $x^2 + y^2 + z^2 = 1$)? Please add an example of usage (if not ...
2
votes
0answers
75 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 ...
5
votes
1answer
142 views

Efficient free alternative to *Mathematica*

I am searching for a free alternative to Mathematica. By efficient, I mean that it should have every (or at least almost every) function that you can find in Mathematica, including for example Number ...
3
votes
2answers
11k views

Implement a program in Matlab for LU decomposition with pivoting

I need to write a program to solve matrix equations Ax=b where A is an nxn matrix, and b is a vector with n entries using LU decomposition. Unfortunately I'm not allowed to use any prewritten codes in ...
4
votes
2answers
217 views

The J programming language: is it useful for mathematics?

I just stumbled upon the J programming language, which has the description: J is particularly strong in the mathematical, statistical, and logical analysis of data. It is a powerful tool in ...
1
vote
1answer
226 views

Is there software I can use to draw this graph?

So, I have this particular graph to consider. It has the vertex set $\{1,...,17\}$ and edge set $\{(i,j)|i+j ~\mbox{is prime}\}$. Define a cost function $c:E(G)\mapsto \mathbb{R}$ by setting ...
2
votes
1answer
71 views

Software for math sketching

Usually when you're writing in LaTeX you want some pretty illustrations. Right now for geometry figures I use GeoGebra, which is easy enough; but I usually see better figures on other papers. Plus, ...
0
votes
1answer
51 views

Exponential least squares biased to small y?

I'm working on fitting an exponential decay curve to a data set. While searching for techniques I found Wolfram's page describing how to easily accomplish it by taking the natural log of the ...
1
vote
3answers
220 views

Runge Kutta 8(5,3)

This is actually three small very related questions about Runge Kutta methods. 1) I have programmed a RK 7(8) method also RK 4(5). At the beginning I was assuming that the RK 7(8) uses two ...
0
votes
2answers
84 views

Defining a probability density function in R (software), and sampling from it

I'm asked to generate a random sample from a logistic distribution with the PDF, $$f(x)=\frac{e^{-x}}{(1+e^{-x})^2}$$ without using the function rlogis(...) So I ...
76
votes
21answers
41k views

Software for drawing geometry diagrams

What software do you use to accurately draw geometry diagrams?
0
votes
0answers
60 views

Calculations in McLain groups

Is there any program in GAP or other softwares doing calculations in McLain groups and finding subgroups etc. For the McLain groups see Derek Robinson's book: A course in the theory of groups, p347 ...
0
votes
1answer
32 views

Mathcad simplify results using cnsg instead of 1

How can I prevent Mathcad from adding csgn to my siplification? Sample: (x-1)/((x-1)^2)1/2 simplify -> csgn(x-1) Image from Mathcad
1
vote
4answers
691 views

Calculator similar to Desmos but for 3D

Is there a calculator with functionality similar to Desmos but in 3 dimensions? I am looking to learn about families of quadric surfaces so I am looking for a 3D calculator with sliders.
-2
votes
1answer
29 views

Is there a document creator that allows for basic entry? [closed]

I am really not sure how to word this... I'm wondering whether there is a program that allows for document writing, and works in a similar way to the Equation Editor in MS Word? (obviously without ...
1
vote
1answer
77 views

Formula rewriting software

I would like to have a program that rewrites formula's for me. What I would like a software where I can imput some formulas, constraints, and so on, and then the program outputs the formulas that ...
1
vote
1answer
71 views

What software and hardware can you use to write math and take notes?

I'm trying to basically replace paper. I want to be able to write things and draw things out as easily as I can on paper. I bought the Wacom Intuos tablet on Amazon but ended up returning because it ...
5
votes
1answer
233 views

FLOSS tool to visualize 2- and 3-space matrix transformations

I'm looking for a FLOSS application (Windows or Ubuntu but preferably both) that can help me visualize matrix transformations in 2- and 3-space. So I'd like to be able to enter a vector or matrix, ...
6
votes
2answers
148 views

Software or tool for investigating groups

I'm interested in software that has the ability to investigate finite groups. In particular, I'd like to be able to ask it questions like "What are the solutions to $x^3 = 1$?" (i.e. find cube roots ...
1
vote
0answers
56 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 ...
4
votes
1answer
118 views

Computer Algebra Systems for Experimental Mathematics (especially Integer Relations with PSLQ)

I would like to use a computer algebra system to do some experimental mathematics, particularly Integer Relation problems using the PSLQ algorithm. I know that Maple has a PSLQ implementation, but ...
2
votes
2answers
591 views

How can I find out whether a number is a quadratic residue in a large modulo?

Without strenuous arithmetic. Is there a program I can download to do so? What are the quadratic residues modulo $5^4$ or $5^5$? Thanks!