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

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10
votes
4answers
1k views

Online MathJaX editor

I suspect this might easily be a clone question, it seems impossible that nobobdy would've asked this before, but my searches seem to return nothing. I've grown very used to the MathJaX input here. ...
-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) ...
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 ...
55
votes
10answers
32k views

What should I learn first, Mathematica or MatLab?

I have a non-professional interest in math and I would like to be able to be curious and play around with some math that I'm learning about (both here and from calculus-and-higher level math classes). ...
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
vote
2answers
71 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.
1
vote
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?)?
13
votes
6answers
3k views

What software and/or language to use to take Math lecture notes?

I have a terrible hand-writing and I'm very good at typing, so I had an idea about taking my math lecture notes using a computer. I've tried using a simple syntax (using purely ASCII) but it's ...
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
votes
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
votes
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.
2
votes
2answers
322 views

Visualization of Cantor set by Mathematica or Maple!

We all know what it is the Cantor set. The Cantor set is created by repeatedly deleting the open middle thirds of a set of line segments. One starts by deleting the open middle third $(\frac{1}{3}, ...
1
vote
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
votes
1answer
49 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 ...
0
votes
1answer
84 views

What is the math behind the ability for computers to grade homework? [closed]

User Par, has given me a great answer to the question. I know that I wrote a poorly asked question, and now understand that I should ask about machine learning. I thought there was some deep ...
6
votes
5answers
234 views

Up-to-date advice on the best way to take notes (maths)

I have read some old discussions about this topic and would like to get some up-to-date advice if possible. I'm going to start university next year (maths), and I know how important is to have a set ...
1
vote
1answer
89 views

Function “lsq” on Scilab

I want to get a positive solution "x" for the linear system Ax = b. Is there any function for this? I did some research and I find a function called "lsq" under scilab, what this function is for? ...
9
votes
1answer
263 views

Software for organising mathematics

While I like working with matematics inside LaTeX (that is to say, scribble notes e.t.c. even for things I know I will never want typeset), I often find myself resorting to pen and paper for the ...
1
vote
2answers
201 views

CAS for algebraic geometry, which one?

I use Maple to compute Groebner bases and find it very efficient/fast for my current needs. However, several introductory textbooks on algebraic geometry refer to Singular, which I never used before. ...
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 ...
6
votes
5answers
2k views

Good software for linear/integer programming

I never did any linear/integer programming so I am wondering the following two things What are some efficient free linear programming solvers? What are some efficient commercial linear programming ...
0
votes
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 ...
1
vote
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. ...
1
vote
2answers
75 views

What software is useful for generating diagrams to use in formal proofs?

What software is useful for generating diagrams to use in formal proofs? I am interested in software for geometry diagrams, graphs, plots, and any other useful kinds of diagrams.
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.
1
vote
1answer
75 views

Definition an action of a group on itself and its orbits (GAP)

Let $G$ be a finite group. $x \sim y$ iff there exists $g \in G$ such that $$ \langle x \rangle = g^{-1} \langle y ‎\rangle g $$ where $\langle x \rangle$ is the subgroup generated by $x$. Then $G$ ...
3
votes
1answer
200 views

Differences between GAP and PARI/GP?

I was looking for free alternatives to Magma to perform number theory computations, such as modular, factorization, etc. and I've found GAP and Pari. What's the difference between them? Any other ...
1
vote
2answers
52 views

Graph Theory Software [duplicate]

I am looking for software to draw graphs with edges and nodes, show colorings, etc. Where can I find such software?
1
vote
3answers
116 views

How do I generate $100$ numbers in $[0,1]$ which are more dense at $0$ and $1$?

I just need to generate random numbers in $[0,1]$ which are more dense at the end points. I first thought of generating two sets of numbers from $N(0,1)$ and $N(1,1)$, and then using those. But that ...
1
vote
2answers
172 views

What programming languages are used in (chaotic) dynamical systems and nonlinear phenomena research?

I'm currently considering pursuing postgraduate studies in the field of chaos/dynamical systems/nonlinear phenomena, and was wondering whether there are particular programming languages that are ...
0
votes
3answers
66 views

Equation is not evaluating any result

eq1 := $y = -26.21231979*z+15.42332896+13.22411533*e^{-.6786000000*x}$ eq2 := $y = -25.98077423*z+14.81943362+13.53858145*e^{-.6569000000*x}$ Comparing both equations, eliminating $y$ ...
2
votes
1answer
73 views

Software for generating Cayley graphs of $\mathbb Z_n$?

Does it exist any program (for linux) which can generate a nice Cayley graph of any $\mathbb Z_n$? (If it's possible to create such a graph at all, that is.) (where perhaps $n ≤ 100$ or something ...
1
vote
2answers
363 views

Fit a semicircle in a distribution: MATLAB

I have a set of data points which distribute around a semicircle. How can I fit a semicircle on that distribution in MATLAB? The data has two columns (X Y) and a number of rows (varying for different ...
0
votes
1answer
153 views

Solving equations in MAPLE

I am using maple for the first time. I want to invert the equations using any maths tool. I tried it using MAPLE. I have given two equations in this form: $a=x*b^r + y*(b^s)*(c^t) + z*c^u$ Now ...
5
votes
0answers
65 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 ...
0
votes
1answer
37 views

Free interactive software for vectors

I'm looking for a free, interactive program that allows me to graphically draw vectors, and at the same time display specified dot products, magnitudes, etc. as I move/resize the vectors. It can be ...
2
votes
1answer
118 views

Some questions about Fractals and software

Ever since I read this article on math.SE I have been amazed by the wonder of fractals. I have been trying to learn what are fractals and how to write an equation for one, and I am truly confused, I ...
1
vote
0answers
76 views

Software/Applet to Draw Tree Diagrams (for Enumeration Problems)

I need a software/applet/flash file which easily draws tree diagrams for simple enumeration problems: I want to give number of the vertices in each layer, and it draws the diagram which shows all the ...
1
vote
0answers
80 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 ...
6
votes
0answers
88 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 ...
2
votes
0answers
96 views

Dynamic Geometry Software for Straight-edge and Compass Constructions

Geogebra is a very good dynamic geometry software. It has so many default tools, e.g. parallel line, angle bisector, tangent to the circle, inscribed and circumscribed circles, etc. But I want the ...
0
votes
1answer
26 views

calculating the median in iWorks Numbers from a dictionary of values

I need to calculate the median among some numbers which I have in iWorks numbers. Since I have to do this several times (a few hundreds) I really cannot do it by hand. The numbers reach me (from the ...
1
vote
1answer
522 views

How to minimize matrix function in MathCAD?

I'm new to mathcad and i'm experiencing problems with using it. I need to minimize my function Trr(Rr), where Rr is matrix with ...
2
votes
2answers
486 views

Good freeware for solving equations symbolically

Many years ago I used maple to solve equations symbolically. Are there any good freeware alternatives? I have three equations in three unknowns and want to find the solution symbolically
0
votes
2answers
724 views

Octave Graph Plotting: Axis when x and y = 0

By default, when I plot a graph, the axis seems to be at the lower limit x=linspace(-10,10,20) y=4*x+2 plot(x,y) How can I have the axis when x=0 & y=0, ...
0
votes
1answer
73 views

How to write a function that operates elementwise on a matrix?

I have written a function $f$ in Matlab that receives a number and returns a number, for example function r = myFun(x) r = (exp(x)+3)/2 end I would now like ...