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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5
votes
1answer
118 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
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
1answer
33 views

Solving linear functions with constraints.

I have a table of data, for maximum available items in a given time period. With a constraint on how many of each items I can take in total. When I have taken the allowed amount of an item I can ...
1
vote
1answer
122 views

total number of combinations?

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 ...
1
vote
1answer
141 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. ...
1
vote
1answer
84 views

Asymptotic bounds. What software to use?

For a pair of expressions ($A,B$), I need to determine whether $A$ is upper asymptotic, tight bound, or lower asymptotic of $B$. For example: $$A = n^{\log(c)}$$ $$B = n^{sin(n)}$$ What (free) ...
0
votes
1answer
61 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
1answer
34 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
1answer
110 views

How to represent R function dexp mathematically?

I need help representing this line of code mathematically. exp(sum(dexp(x,prop_theta,log=TRUE)) - sum(dexp(x,cur_theta,log=TRUE))) Thanks for your help in ...
0
votes
1answer
46 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 ...
0
votes
1answer
95 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 ...
1
vote
0answers
64 views

Software tools or libraries for dealing with temporal reasoning (visualization/representation).

Temporal aspect of data with no doubts is an important characteristic for many software systems. I'm interested if there are any tools/frameworks for dealing with temporal data for reasoning on it. I ...
1
vote
0answers
38 views

On solving non-linear programming problem and the relevant software

I have a non-linear programming problem, in which all the inequality is linear and only the optimization goal is in a non-linear form. The problem is as following. $x_j$ is the variables and $a_{k,j}$ ...
1
vote
0answers
46 views

Issues with CVX package for optimization

I am trying to use the cvx package for optimization. However, I am having some issues with it. I have a variable X which is a matrix but I cannot add $X^{-1}$ in the objective function. What should I ...
1
vote
0answers
44 views

Question about Maxima

We want to sum up a polynomial WeylNumer(m+n-2*i,2*i+2*k+1-2*j)) for i from 0 to m, for j from 0 to n. What does "map(x->sum(sum(x,j,0,k),i,0,m),WeylNumer(m+n-2*i,2*i+2*k+1-2*j));" mean in Maxima? ...
1
vote
0answers
168 views

Computer Algebra System for probability theory

Is there literally any [ preferably free ] Computer Algebra System that would handle probability theory directly? As for now I am mainly interested in calculating marginal densities out of ...
1
vote
0answers
242 views

Programmer understanding academic writings on maths

I would like to know in which order I should learn different areas of maths so I can have a robust overview of all the theory in case I need something for a computer programming problem. So I've ...
1
vote
0answers
92 views

Concerning The 'Price-Collecting Steiner Tree'

I'm a Master student at the University of Leuven, Belgium. I have to make a report of a case concerning the 'Price-Collecting Steiner Tree'. We have our model and our restrictions. We are just looking ...
1
vote
0answers
289 views

Sensitivity analysis on non linear problems

First of all, I would like to apologize if this question does not fit into the "soft" category. I am quite a newbie around here, and maybe I can fail to get the feeling of what exactly is a "soft" ...
1
vote
0answers
218 views

Coq transparency issues with type class fields

I am having some issues with, I suspect, transparency of fields in type classes. Consider a type class such as ...
1
vote
0answers
85 views

question about B.N.F

for example i have a code of strings which is efzau and 47 how can i define a grammar, set of terminal symbols and set of non terminal using B.N.F? Thanks
0
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 ...
0
votes
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 $11$ ...
0
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
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 ...
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 ...
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
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 ...
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} < ...
0
votes
0answers
15 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
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 ...
0
votes
0answers
14 views

Engineering - Appropriate concrete grade for supporting structure under wind loading?

I have a concrete tower/pier/supporting structure for a bridge. As part of the design, I need to consider SLS checks for wind loading on the tower before the deck, cables etc are built, so ...
0
votes
0answers
53 views

QQ-Plot on R for censored data.

I have plotted a qq-plot on R for a data set which is assigned the value -0.25 for any values below -0.25. However on the qq plot it plots all the -0.25 points, I have been told there is a way to plot ...
0
votes
0answers
374 views

Low rank approximation using CVX toolbox in Matlab

I try to use CVX toolbox to do "low rank approximation" work. The code is as follows: ...
0
votes
0answers
20 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 ...
0
votes
0answers
71 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
0answers
66 views

Can a Computer Algebra System 'experiment' with expressions?

I have recently been reading about software for symbolic manipulation, and I can see its use as a tool for performing large calculations that would be unfeasible otherwise. Given that these systems ...
0
votes
0answers
38 views

Tool for differentiating a matrix and solving a matrix equation (in closed-form)?

Is there any software or online tool that can analytically solve a complex matrix equation, such as the following one in closed form (not numerically)? $$\frac{\partial \; ...
0
votes
0answers
42 views

How to reduce a graph via decomposition?

Is there a Java / C# library that can be used to reduce a graph via decomposition? Or could someone point me to a good tutorial where I can learn all these? E.g.
0
votes
0answers
56 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
votes
0answers
129 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 ...
0
votes
0answers
121 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 ...
0
votes
0answers
88 views

Simple Application to model matrix transformation of basic geometric shapes

I've been searching the internet for a simple, free, application that will allow me to experiment with matrix transformations on a 2D and/or 3D graph of geometric shapes. For example, I'd like to ...
0
votes
0answers
626 views

Generating an equation from an image I have

I am not exactly sure if this question belongs here but I could not think of a better place to ask. So I recently discovered that various people on the internet have created equations for rather ...
-2
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 ...