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

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3
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0answers
23 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 ...
0
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1answer
12 views

(Linear regression and data points) Does anyone have links to good tutorials, or advice? [on hold]

I have gathered several sets of 1500 data points. I am trying to import the data and run a simple linear regression model on the points. I have found very vague tutorials to teach me how to do this. I ...
2
votes
1answer
29 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 ...
0
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0answers
15 views

Help disabling press-to-test [on hold]

I've got a TI Nspire CAS (not the newest CX edition) and I accidentally put degrees instead of radians on Press To Test. Now it's stuck in this mode and the information at ...
-1
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0answers
15 views

Which is larger, the number of paths in a program or the number of points in its domain?

This is all that was asked in the question with no book or references provided. Can anyone helps me with this?
0
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0answers
9 views

Symbolic Expansion Hypergeometric Series

In general, how do I get Mathematica to symbolically expand various infinite series to an arbitrary degree of accuracy? I deal with q-hypergeometric series quite frequently, and specifically want to ...
0
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1answer
30 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 ...
2
votes
2answers
50 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 ...
-2
votes
2answers
60 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]\\ ...
0
votes
1answer
24 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 ...
1
vote
1answer
29 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
vote
1answer
79 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 ...
2
votes
3answers
54 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
15 views

Calculator for doing Ramanujan kind of summations?

Calculator for doing Ramanujan kind of summations, required? And calculator for doing fuzzy arithmetic as well. Codes and interface softwares.
0
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0answers
50 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 ...
0
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0answers
22 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 ...
1
vote
0answers
24 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 ...
0
votes
1answer
17 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 ...
-1
votes
3answers
59 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
votes
0answers
61 views

Matlab code help with Shooting method to solve differential equations

I have three differential equations which I am trying to solve using shooting method. I am using secant method along with RK4. I have used ODE45 function to solve it. But when I run my code, the code ...
0
votes
1answer
69 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
1answer
33 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
votes
3answers
41 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
votes
1answer
45 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 ...
1
vote
1answer
35 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, ...
0
votes
2answers
41 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.
0
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0answers
15 views

MathCad Symbolic Rearranging

How can I rearrange an equation symbolically using MathCad, as shown in the example image below? I would like to solve for z in terms of x,y. Thanks.
3
votes
3answers
68 views

Changing [2,4] into [0,1,0,0,0,1] in Matlab

Good day, I apologize for the very vague title, I didn't really know how to formulate what I want. However, I can explain what I mean: I have a vector v1: ...
0
votes
1answer
14 views

How to assign the output of solve in mupad to a set of valuables?

How to assign the output of solve in mupad to a set of valuables? For example, ss:=solve([x+2*y=1, 3*x+y=2],[x,y]); The result of ss[1][1] is x=3/5. I would like to assign some variable a to the value ...
-1
votes
1answer
48 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
2
votes
1answer
120 views

How to make a parabola in GeoGebra?

I need to make a parabola in GeoGebra. "Smallest" one is going to contain 3 points, while the "biggest" one is going to be defined by 9 points. So if anyone could explain to me how to make a parabola ...
-2
votes
1answer
23 views

P,Q,R at the points (4,2) (2,1) and (6,-3)

PS and QT are altitudes. A) Find the equations of PS and QT answer: PS: y-x-2=0 QT: 5y-2x-1=0 B) Hence find the coordinates of U the point of intersection of PS and QT. answer: (11/3, 5/3) C) ...
0
votes
1answer
51 views

Give context-free grammars that generate these languages

Give context-free grammars that generate these languages {a^(2i) b^(3k) c^(4i) | i => 1, k => 1} {a^(i) b^(k) c^(k) a^(i) | i => 1, k => 1} I am seriously stuck here. Esp for the 1st one. For the ...
5
votes
1answer
55 views

Software for basic math notes at 5th to 10th grade level (10 to 15 years old)

So I've looked around, here and otherwise, but sadly can't seem to find quite what I'm looking for. I don't know if it even exists, I figured it was worth trying to ask, though. I've found plenty of ...
3
votes
1answer
65 views

The function $f(x)$ passes through the point $(-1,6)$ and $f'(x)=3x^2+2x+1$

a) find $f(x)$ I found that to be $f(x) = x^3+x^2+x+7$ b) Prove $f$ has a root between $x=-3$ and $x=-2$ I don't know how to do part b.
1
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1answer
61 views

Which math software?

As a math student interested in mathematical modelling, which math software should I start with (mathematica, matlabe, octave, or what else?)?
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2answers
72 views

Books to learn how to use matlab, mathematica, octave and latex

I need some good books to learn how to use these efficiently: 1)Matlab 2)Mathematica 3)Octave 4)LaTeX Thank you.
0
votes
1answer
33 views

Fixed points in GAP

How we can write a command in GAP for those permutations that are fixed, For instance: if we have x:=(3,4)(5,7)(6.8)(9,12)(10,13)(11,14); here 1 and 2 are fixed Moreover, if these point lies in ...
0
votes
1answer
25 views

“Dynamic figures”

Which kind of software allows to do things like this one or that one, for example?
0
votes
2answers
89 views

is there a trick or shortcut for this derivative

For the following function S(z), I would like to know the nature of it's derivative. I calculated the first derivative wrt to z but it assumes monstrous proportions when it comes to the second ...
2
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0answers
39 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 ...
0
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1answer
52 views

Equation of a dotted circle

What is happening in this dotted circle? $x^2+y^2 < 2x$ I don't understand how this forms this dotted circle that I get when I type this into geogebra.
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0answers
87 views

Why doesn't this work in Geogebra

I've got a really simple equation that I want GeoGebra to plot: $\sqrt {2x}-\sqrt {3y} =2$ It says it's an illegal operation so I try: $3y=2x-4\sqrt{2x}+4$ When this doesn't try, I try changing ...
2
votes
0answers
45 views

Carmichael function available in PARI / GP?

Is the Carmichael function $\lambda(n)$ available in PARI / GP or do I have to program it ? I know the command znorder, but this does not seem to be enough to calculate the carmichael function. I ...
0
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1answer
51 views

Calculate Geometric Series from three things

How can I calculate the gp series from third term,third last term and sum of the series?Is the approach of calculating first term by taking gcd of third term and sum of series correct or not?
6
votes
1answer
86 views

Animations or Pictures of Group of Rigid Motions (or Rotations) of the Cube

Consider a cube that exactly fills a certain cubical box. As in Examples 8.7 and 8.10, the ways in which the cube can be placed into the box corresponds to a certain group of permutations of the ...
1
vote
1answer
62 views

Maxima CAS : distributing exponential terms while factoring

In maxima, I have an expression that is simplified to an expression similar to the form of: tmp : c * d * (exp(a*t) - exp(b*t)) * exp(-a*t-b*t); A typical ...
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0answers
35 views

Use of unassigned parameters in Mathcad

I want to define a function with parameters and make calculations with it so that the resulting equations contain my parameters and are not calculated based on the pre-defined values of parameters. ...
0
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0answers
46 views

How to graph the Riemann zeta function in Grapher.app (Mac application)?

I am interested in graphing the Riemann zeta in the only graphing application on my computer, the Grapher app. I am only interested in graphing $\zeta(x)$ for real $x$, but graphing on the whole ...
0
votes
1answer
75 views

positive real root of the equation using Horner's Method

obtain a positive real root of the equation $$x^3-3x^2+2.5=0$$ that lines between $1$ and $2$ using Horner's method.