Help with mathematical software like Maple, Mathematica, MATLAB, Wolfram Alpha, Mathcad, Pari/GP ...

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1answer
49 views

Calculating massive definite integral

I'm struggling with some integrals which one of them looks like THIS: $\displaystyle{\int_0^{3.8}\frac{\pi^4 x y (a+9 c+8 b \cos(\frac{\pi z}{l})+18 c \cos(\frac{2 \pi z}{l})) \sin^2(\frac{\pi ...
3
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1answer
1k views

How to visualize the Gaussian curvature of a 3D surface?

I have a 3D surface. I want to visualize color-coded Gaussian Curvature. Is there any software (e.g. MATLAB, Mathematica) which can be used for calculating and visualizing the curvature in color code ...
0
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1answer
322 views

total number of different mixes

Patient Age Avg Visits / Year <1 year 7.5 1-4 years 3.0 5-14 years 1.8 15-24 years 1.7 25-44 years 2.6 45-64 years ...
3
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1answer
94 views

Course/homework management systems for computational math courses [closed]

I will be teaching a course which will be based on a mathematical software, (as in MATLAB, MAPLE, Mathematica). The question is how to manage homework. Ordinary email is not efficient it seems. I am ...
0
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1answer
23 views

BIBO stable system

I would like to ask if this system is Bounded Input Bounded Output stable : $$y[n] = r^nx[n],\quad r\in \mathbb{R}$$ And why? I think this system is stable because $$| x[n] | ≤ B,\quad B < ...
3
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0answers
44 views

Efficient software for producing (expression) trees “on the fly,” with good editing (e.g. cut/copy/paste) facilities?

A formula like $\forall x \exists y(x+y=0)$ can be represented as a tree. Something like so: ...
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0answers
13 views

Detect distance balance in graph

does exsist any software to detect distance balance in graph? I see gephi I wan't to know can this application do this work? thank you!
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0answers
35 views

Computer-aided study of elementary geometry

As a beginning student of elementary (euclidean plane) geometry, so far, I have gotten the impression that there are two major approaches to geometries: naive vs axiomatic. Being a humanities student ...
0
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1answer
62 views

Graphing a triple integral, software and the actual integral

What software can be used to graph a triple integral? I tried to use wolfram alpha, but it wouldn't work. I am trying to graph:$ \int_0^1 \int_\sqrt{z}^1 \int_0^{2-y-z} f(x,y,z) \; \mathrm{dx\; dy\; ...
5
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1answer
66 views

Number of subgroups of order $4$ and $8$ in a group of order $72$

Let $G$ be a group of order $72$. I want to calculate the number of subgroups of order $4$ and $8$ with GAP. How can I do? thanks in advance.
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1answer
58 views

Plotting piecewise functions maple

How would I plot the following equation in maple? $$f(x) = \begin{cases} 1, & \text{if } x\in\mathbb{Q}, \\ 0, & \text{if } x\notin \mathbb{Q}. \end{cases}$$
2
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1answer
44 views

Random Variables Software

Is there some softaware that deals with random variables as objects? For example, suppose I define some i.i.d. random variables $X_1,\ldots, X_n\in N(0,1)$, where $N(0,1)$ is the normal distribution ...
0
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1answer
40 views

Which 3D finite element mesh generator recommend to me?

Which tetrahedral mesh generator recommend you to study finite element method? I tried to use TetGen. It works well but I can not install tetview to see the meshes because I have a 64bit computer. ...
3
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2answers
86 views

$1+n!=m^{2}$ for some n,m$\in\mathbb{N}$

I have no idea whether this is known or not and I couldn't find anything related on Google. While I was studying , I come up with this idea $1+n!=m^{2} $ for some $n,m\in\mathbb{N}$ $1+4!=5^{2}$ ...
1
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1answer
48 views

Expressing a matrix in terms of subgroup generators using Magma

With Magma, it is possible to define a subgroup $H$ of a finite matrix group $G$ in terms of generators. Given a matrix $M\in G$, Magma can also determine whether $M\in H$. Presumably, if Magma ...
3
votes
1answer
180 views

Online Finite Field Calculator

I need to find an online Finite Field calculator with the following operations: Inverse SqrRoot Mult Div I have found one a couple of days ago but lost the url, and cannot find it now. Any ...
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9answers
6k views

Graph theory software?

Is there any software that for drawing graphs (edges and nodes) that gives detailed maths data such as degree of each node, density of the graph and that can help with shortest path problem and with ...
1
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0answers
39 views

Program for Handling Huge Primes

I am trying to run a program with really large primes (around the $10^{20}$th prime), but Mathematica seems to only be able to handle around the first $10^{12}$ primes. Is there any software that can ...
3
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0answers
42 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 ...
14
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9answers
4k views

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

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 ...
2
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1answer
38 views

How does the base of a group determine the “sort” of the elements in the group

I'm trying to study groups in Mathematica, and I've asked a question on Mathematica.SE that perhaps only someone from Math.SE could answer. Related: How does ...
2
votes
2answers
121 views

Software to find out adjacency matrix of a graph.

I am looking for a graph theoretical software. I can draw a graph delete or add its vertices and edges whatever I want. The software shall give me the Adjacency matrix, degree matrix etc. Is such a ...
0
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1answer
33 views

Programs for Purple Comet Math Meet

I am going to be participating in the high school division of the Purple Comet Math Meet. Since computers are allowed to be used on the competition, I was wondering if anyone can recommend ...
10
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9answers
432 views

Windows lightweight Math Software

I'm looking for lightweight, free, Windows, Math software. Something I can put an expression and get an answer, or graph it. I tried Euler, but it is quiet complicated and HUGE. Basic needs: ...
0
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1answer
32 views

formula from 2s complement to decimal please

Hi what is the formula for an $n$ bit twos complement to decimal.. for example from $ n$ bit unsigned to decimal the formula is.. $\sum_{i=0}^{n-1} a_i 2^i$ from signed magnitude to decimal is ...
3
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3answers
75 views

Software for plotting functions… Any suggestions?

I'm looking for a (hopefully cheap/free) software that could plot functions for academic use. Until this point, I used MATLAB as a primary tool to draw graphs. Although it 'could' plot any functions ...
0
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0answers
52 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 ...
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2answers
62 views

How to determine that a set of equations has a solution or infinite many solution or no solution?

I have a set of polynomials (the variables are $a,b,c,d,e,f,g,h,i,j,a_1,b_1,c_1,d_1,e_1,f_1,g_1,h_1,i_1,j_1$, the polynomials are $L_i$, $i=1,\ldots,20$): $$ aa_1=0 ; [L_1]\\ e a_1 + b e_1=0; [L_2]\\ ...
1
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1answer
32 views

Express a permutation using minimal number of simple reflections.

I have a permutation $w=(25673)(14)$. I want to express $w$ in terms of minimal number of simple reflections of type A Weyl group. I can do this as follows. First we have $w=(23)(27)(26)(25)(14)$. ...
1
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1answer
106 views

Why is there a different button for 'minus' and 'negative' on a calculator?

Perhaps this is more of a programming question than anything else, and if so I'll gladly migrate it on over to StackOverflow, but I think this site might be a bit more suited. my question is ...
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1answer
62 views

Is there any software that can replace scratch paper

I am doing a lot of simplification of length equations and wonder if there is any good software/editor that can save me some effort and scratch paper. I don't need the software to calculate, just need ...
0
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1answer
2k views

Finding matrix inverse by Gaussian Elimination With Partial Pivoting

Hello guys I am writing program to compute determinant(this part i already did) and Inverse matrix with GEPP. Here problem arises since i have completely no idea how to inverse Matrix using GEPP, i ...
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0answers
36 views

Geogebra - constructing the smallest circle that contains a triangle

I want to create a Geogebra demonstration of the smallest enclosing circle of a given triangle. The Geogebra tutorial shows how to create the circumcircle of a triangle (by calculating the ...
85
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7answers
9k views

Tablet for reading textbooks and writing math by hand?

I am a math student. I'd like to find out if tablets (iPads, Galaxy Note 10.1) are worth the cost. How good are tablets for the purposes of reading textbooks as PDF and writing mathematics with a ...
1
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0answers
25 views

In Sage, how to look at orbits of conjugation in GL(2,q). Actually, their image in PGL(2,q)?

I have a matrix $A$ in $\text{GL}(2,q)$ or order $m$. The cyclic group of order $m$ acts upon $\text{GL}(2,q)$ by conjugation powers of $A$ (choose a generator of the cyclic group to act by ...
22
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1answer
7k views

Is Sage on the same level as Mathematica or Matlab for graph theory and graph visualization?

The context: I'm going to start working on a project that involves running predefined algorithms (and defining my own) for very big graphs (thousands of nodes). Visualization would also be welcome if ...
3
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7answers
159 views

Software for unit aware calculations?

When doing engineering calculations it is great convenience to do have software that keeps track of units. Example when calculate something trivial as stress: $\sigma = \frac FA$ And be able to ...
0
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1answer
18 views

excel question and using the correct formula [closed]

if you are given 2 columns, A and B, where A is the conversion rates and in B, you are trying to display those entries with a conversion rate of less than 0.25%, how to write the syntax? I tried ...
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3answers
77 views

How to solve that kind of equation using Wolfram Mathematica? [closed]

I need to find all variables $$A, B, C, D$$ for given equation with independent variable $$s$$ How can Mathematica solve that? Example, not working: UPDATE: One Two Three Four ...
0
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1answer
51 views

Is there a program (webbased or not) that allows me to draw freeform on a graph?

I need to draw some graphs for a distance-based course I'm taking where I need to draw graphs that are based on my own estimates, not on a function. All of the websites I'm finding online are based ...
0
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1answer
160 views

software to draw geometry 2D, 3D

I am looking for a software to sketch moving figures as the link http://www.mathsisfun.com/geometry/construct-triangleinscribe.html Thanks.
0
votes
3answers
44 views

What are good introductory books on the various math software packages?

I feel like I've finally gotten a good grip on mathcad, and would now like to start going through the other popular software packages (Mathematica, Maple, and Matlab). Could anybody recommend general ...
0
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3answers
792 views

6/2*(1+2) is 1 or 9? [duplicate]

Possible Duplicate: What is 48÷2(9+3)? Please, look at the picture? Which calculator shows true result and how to prove achieved result?
1
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1answer
43 views

Is there a way in maple to compute sums of arbitrary number of products minors of matrices?

I would like to use maple to compute \begin{align} P_i & = \sum_{1\leq j_1 < \cdots <j_{i-1} \leq i} \Delta_{(2,\ldots, n), (j_1,\ldots,j_{i-1}, i+1, \ldots, n)}(A) \Delta_{(j_1, \ldots, ...
7
votes
7answers
2k views

What software is used to draw undirected graphs?

I need to make a nicer-looking version of this image: Is there some program that generates these graphs? Or are they done by hand in something like Visio? (I'm on Mac OS X, and I have access to ...
0
votes
3answers
490 views

Draw 3d double integral in Maple

I have a voluntary hand in I am working on, and in that rigard I need to draw the following figure in Maple. The area $ \displaystyle \iint_R \frac{x}{\sqrt{x^2+y^2}} \mathrm{d}A $ where $R$ is ...
0
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1answer
278 views

What software can calculate the order of $b \mod p$, where $p$ is a large prime?

I wasn't sure where to ask this, but Mathematics seems better than StackOverflow or Programmers. I have no background whatsoever in number theory, and I need to find software that can calculate the ...
2
votes
3answers
34k views

Finding critical value using t-distribution in Excel

Alright, I'm trying to figure out how to calculate a critical value using t-distribution in Microsoft Excel... ex. a one-tailed area of 0.05 with 39 degrees of freedom: t=1.685 I know the answer, ...
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1answer
65 views

Tool for generating mathematical billiards

i'm currently looking for some program which can generate arbitrary mathematical billiards and trajectories inside them. Any help would be much appreciated! Thanks/ Mats