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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8 views

Free online graphing utility that supports log log and semi log mode

I usually use desmos for quick plotting of graphs but it doesn't have log log and semi log scale. Is there a free graphing utility that contains this feature?
4
votes
2answers
89 views

Advantages to learning Sage?

I'm wondering if anyone can let me know advantages to installing/setting up Sage on my computer for doing computational math (work in groups, finite fields, and combinatorics, along with some search ...
4
votes
1answer
49 views

Smooth Fano Polytopes and Hypersurfaces

This is a rather extended question, so I will try to make it as compact and readable as possible. I am trying to practice with the Macaulay2 software, in particular the polyhedra and ...
0
votes
0answers
10 views

maple table inserted in diff funcion( maple 16) [closed]

I am trying to use maple and I am typing out the following. It appears to give out tables in maple 16. I am not sure how this could be the case. sigma3[rz] := (diff(sigma1(z), ...
0
votes
1answer
26 views

Advanced Mathematics 3D Geometry software?

I am looking for an advanced 3d mathematics geometry software where I can create equations of geometry,trace rays as in Optics,create equations of rays(Ray tracing),create different types of 3D and 2D ...
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votes
0answers
81 views

C++: Finding roots of a polynomial ring.

I need a library (can be used in C++) that finds the roots of polynomial over $\mathbb{Z}_p$ where $p$ is a large prime number. So I can give it an array of coefficients that are big integers in the ...
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votes
0answers
10 views

Finding trends in data with multiple variables, analysis software?

I have a series of many test results (hundreds). They are vibration test results of electronic equipment that has been built the same standard way (same materials, adhesives, structural shape and ...
0
votes
0answers
25 views

How to trace the path of a moving point in geogebra

I created a simple animation in geogebra, two intersecting lines rotating around fixed points. I want to trace the paths of the vertex points of these lines. I mean is there a way when the animation ...
0
votes
0answers
106 views

Descartes Circle

Having two fixed circles and one varying circle, how can I find the radius of nth circle if the new circle formed acts as varying circle i.e. a and b are radius of two fixed circle. using them and ...
3
votes
2answers
58 views

Plot of $y=x+0\sqrt{-x}$ (and WolframAlpha vs Desmos)

To plot the graph of $y=x+0\sqrt{-x}$ : Do we have to first find out the domain of $y$ which is $y \in ( -\infty,0 ]$ ? $\color{blue}{\text{[Case 1]}}$ (that's what I do) Or do we solve the ...
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0answers
22 views

Question about the conditional value-at-risk

I have a question about CVaR (Expected Shortfall) An investment who gives a certain amount of cash with a certain probability : A loss of $20$ millions with a probability of $0.0016$ A loss of $11$ ...
1
vote
0answers
25 views

Permutation calculator

I am studying the Mathieu group $M_{12}$ on the twelve letters $\infty,7,6,8,X,2,0,3,4,1,9,5$ (in this specific order) in the form that it is generated by the permutations $(0123456789X)$, ...
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votes
0answers
14 views

Online Gaussian-elimination solver that produces Latex code of the detailed solution.

I wonder if there exists an online (free) Gaussian-elimination solver that generates a $\LaTeX$ code describing each steps of the detailed solution, i.e. telling which elementary operation is ...
0
votes
2answers
33 views

Program to find Shortest Symbolic Expression

I was solving a physics problem using lots of replacements for some expressions to get a manageable equation. Finally I got my answer, but it looked more like a waterfall than an actual result : ...
0
votes
1answer
20 views

Simple but useful drawing softwares which fit for secondary student

My brother is now grade 6. I would like to look for some easy-to-use softwares, so that he can easily draw most basic shapes, some graphs by himself, without much instruction.
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votes
0answers
6 views

State-of-Art library or a method for paralell matrix inversion?

Do you have reference to a computer library or a paper regarding a state-of-art method to obtain inverse of a matrix in parallel? Thanks, Mojo.
0
votes
0answers
19 views

image plot and imshow in octave

I want to use octave in my study but when I represent the result in a figure, I see a black face. Thank you for having helped me...!
0
votes
0answers
10 views

Tools to Find Limits of Function Outputs from Functions and Input Limits

I've got a complicated (to me) series of functions and I need to determine the limits of the outputs based on various assumptions about the inputs. I took a quick look at SymPy, but it does not seem ...
2
votes
2answers
61 views

Is There Free Software that Uses the Same Commands Math Exchange Uses to Write Math Expressions?

Is there free downloadable software that allows me to write mathematical expressions with the same commands that are used to create them in math stack exchange? I tried texnic center, but their ...
1
vote
1answer
49 views

P-value, T-test, R.

How does language R determine p-value? Suppose that we have a piece of code: x <- c (1,2,3,4) t.test (x) And result: ...
2
votes
1answer
62 views

Any mathematical software to verify no unique products.

Let $D^3= D \times D \times D$ where $D = D_\infty$ where we see $D$ as the group generated by $\mathbb{Z}$ and element $0^*$ of order $2$ such that $0^*n0^*=-n$ for all $n \in \mathbb{Z}$. Letting ...
0
votes
0answers
10 views

Clarification: Deterministic vs Pseudo- Random Number Generation

I came across the readme for a program stating that it was capable of "Simulation tooling: discrete event simulation and deterministic random number generation." I've never heard of this term used ...
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votes
1answer
63 views

What is the Best Mathematics editing tool? [closed]

I need a text editor for mathematics where I can easily type mathematical equations and different symbols as easily and with speed as I type plain text... I have checked some tools but they are ...
1
vote
0answers
43 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 ...
0
votes
0answers
36 views

Looking for math software

I'm looking for a software or a tutorial on how to write my own math software which will solve equations from the value i input. As an example: I will program the following equations into the ...
0
votes
3answers
47 views

Mathematics software to carry out iterations of Newton-Raphson method?

I made this post a while ago, and I understand everything now. The problem is that I'm not sure what mathematics software I can use to generate the iterates like the user Amzoti did. His account has ...
5
votes
1answer
120 views

Best program for creating educational math animations?

I'm looking for recommendations on what program to use for creating mathematical animations. These animations will be used in creating educational videos for high school math -- Trigonometry first, ...
2
votes
1answer
77 views

Practical applications of computer algebra systems

(Sorry if this is not the correct place for the question) Are there practical applications of symbolic computation systems like Mathematica, Sage, Maxima and the like in software development? To ...
0
votes
0answers
11 views

R^2 in Generalized Linear Models

I am trying to model relationship between predictors and explained variable in R using glm() function. I've found quite good model that gives me satisfactory results. Is there some way how to ...
1
vote
1answer
69 views

Writing equations without latex (for labelling, classification, structure analysis and rendering according to mathematical meaning)

I'm searching a solution to write equations other than (but compatible with) latex. While latex is excellent for math rendering, it is not suited to describe the structure or meaning of the equations. ...
1
vote
1answer
129 views

Finding a root by bisection method in Excel

Working on a maths assignment and we're trying to use Excel for a bisection method. $$\frac12 e^{x/2}+\frac{1}{2x}-\frac32=0$$ Here is a pic, I can't get the formula to work with the exponent. This ...
-1
votes
2answers
104 views

Is there any good software to plot trigonometry graph? [duplicate]

I want to plot trigonometry graph like sine function, cosine function, etc. (degrees, not radians) but I don't find anyway to make it in my computer. I like graph produced by WolframAlpha, but it ...
1
vote
2answers
74 views

What is a good free software to draw complicated Venn diagrams?

The important feature I want is this : I would like to draw two sets as say ovals in solid line but I would like to have the border line in some neighborhood of their two intersection points to be ...
0
votes
2answers
124 views

online software to draw generic graphics for calculus and analysis?

could you mention any software in which I could design images like this.
1
vote
0answers
132 views

Cabri 3D - Rotating a triangle

I'm given the exercise, in Cabri 3D, to rotate the triangle T around the axis AB and lead it via the triangle To to the triangle T'. I tried to rotate the triangle T around a fixed point and then ...
1
vote
1answer
48 views

Finding the function of a parabolic curve between two tangents

Alright folks, first question here so let me make the situation and background clear. I'm attempting to start studying for aerospace engineering, so I'm working on improving on my math skills as we ...
1
vote
0answers
19 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 $\max_{i,j}|x_{i,j}|$, ...
0
votes
0answers
22 views

Computational verification request

Let $I(x) = \sigma(x)/x$ be the abundancy index of $x$. Note that $\sigma$ is the classical sum-of-divisors function. Previously, I computed for $u$ in the inequality $$\sqrt{3} < ...
3
votes
3answers
306 views

A bug with the WolframAlpha computational search engine?

I think I may have discovered a bug with WolframAlpha. So I was trying to determine all $x$ such that $$\sum_{i=0}^{5}{x^{-i}} < \frac{13}{12}.$$ WolframAlpha spit out $x > 13$ (see this ...
1
vote
1answer
30 views

How to truncate decimal points especially .000000… on floats in an expression in Sage?

I have typed out the following block of code in LaTex/SageTex. ...
4
votes
4answers
161 views

Why can you not omit the '*' sign for multiplication in Sage, Matlab, and other mathematical software?

Question I have some experience with Sage and Matlab. Both mathematical software packages require you to have the '*' sign when multiplying symbolic variables with integers. For example, in Matlab ...
0
votes
2answers
32 views

How to start using R (or free alternatives)?

How to start using software R to make regression analysis and forecasting? Are there any other free software to work with this kind of analysis?
0
votes
0answers
16 views

models to experiment with game theory?

I want to learn game theory from a practical point of view. Does anyone know if there exist programs that illustrates the utility of game theory? Or books that contains MATLAB simulation of games? ...
0
votes
2answers
57 views

what is the proof for matrix multiplication being commutative

I understand that if we have matrix $A$ and $B$ then $A \cdot B \neq B \cdot A$ as when you multiply the matrices in a different order, then their cells will shift in another form, thus making their ...
2
votes
1answer
63 views

Help in making an animated locus is needed [closed]

I have triangular cardboard ABC, right angled at C. As shown in the attached, initially, A and B are resting on the x- and y- axes respectively. A is then allowed to slide along the x-axis with B ...
2
votes
1answer
43 views

Is there any Software package to confirm correctness of your derivation steps?

Suppose I made a very complicated (not necessarily difficult) derivations in which it is very likely for anyone to make some silly mistakes, e.g., incorrect sign, overlooking a term, and so on. I ...
1
vote
4answers
128 views

Best program for 3D plotting

I've hit a roadblock with pgfplots where it has difficulty plotting multiple functions at the same time in 3D. As it states in the manual on page 114, "it cannot combine different \addplot commands, ...
0
votes
0answers
40 views

Geometry software

I have some computer graphics programming experience, not so long ago, I understood that I haven't grwat experience in math and there is some problem. So, im learning math and coding at the same time. ...
0
votes
0answers
32 views

How do I put this differential equation into mathcad 11

$$\frac{d^2y}{dt^2}+\frac{dy}{dt}+2y(t)=sin(t)+2e^{-2t}-2$$ I want to put this into mathcad, and then solve it numerically. I would also like to plot the solution. Sorry for the link, wasn't sure ...
1
vote
0answers
36 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 ...