Questions tagged [math-software]

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), (gap), (sage), (magma-cas).

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Software for Exportable NURBS surfaces from Parametric Equations $x=f(u, v), y=f(u, v), z=f(u, v)$ (Must be Suitable for Engineering)

The title pretty much says it all. Is there any software out there that lets you input 3D parametric equations without having to go to the trouble of writing a bunch of code and then lets you export ...
Johnny's user avatar
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3 votes
0 answers
71 views
+50

Looking for help with geogebra animation applets

I was wondering whether anyone experienced with GeoGebra could create an applet that does this: https://www.geogebra.org/m/jzsxxnhq but rearranges a cylinder into a cuboid rather than a circle into a ...
John's user avatar
  • 179
2 votes
0 answers
38 views

Jacobian of a Convolution [closed]

I'm using JAX to produce a convolution ...
James Li's user avatar
0 votes
0 answers
15 views

Visualising the interior gluings of a 3D shape in 2D

I have a small triangulation of a 3-ball that I'm trying to form a nice 'visualisation' of for a paper/talk. The best I've got so far is a few rough sketches like the one below, where I've tried to ...
Finn T's user avatar
  • 81
1 vote
0 answers
18 views

Fast software for multivariate polynomial manipulation

I need to perform some heavy computations involving polynomials in many variables. I don't need any fancy features, just adding and multiplying polynomials and substituting variables by other ...
Jordi Castellví's user avatar
1 vote
1 answer
74 views

Practical fast primality test

I want to test the primality of some numbers. To do this I have tried PARI/GP and from the command line: ...
Fabius Wiesner's user avatar
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0 answers
45 views

Software for finding a closed formula from a list of triples of positive integers

Suppose we have a finite list of $n$ triples of positive integer numbers, as: $$ \mathcal{L}=\{(a_{i1},a_{i2},a_{i3}):a_{ij}\in \mathbf{N}\setminus\{0\}, \text{ for } j=1,2,3\}_{i=1,\dots,n}.\ $$ Is ...
Hola's user avatar
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1 answer
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Are there attempts to use machine learning to settle disputes over long mathematical proofs?

As far as I remember, The proof of Perelman of the Geometerization Conjecture took a year to check by the experts. The claimed proof of the ABC conjecture Mochizuki took few years to check, and Peter ...
Amr's user avatar
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-1 votes
1 answer
57 views

Visualisation Tool: Coordinate Systems [closed]

I'm looking for a tool/program for the visualisation of different coordinate systems for three-dimensional space. I would like to create simple illustrations and I would like to save the result as a ....
Sylvia's user avatar
  • 101
2 votes
1 answer
97 views

Inverse of complete elliptic integral of the second kind for programmers

Suppose I have given the value of a complete elliptic integral of the second kind $E(\varphi | m)$, with a positive value $z$, and the value $m$. How can I solve for $\varphi$ in the following ...
haifisch123's user avatar
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LINGO: Partitioning a set of indices in optimization models?

I need your help regarding solving an optimization problem in LINGO programming. Assume that there is a set of parameters and variables; e.g., Vark/ 1..18 /. I need to partition this set into three ...
Reza Farahani's user avatar
0 votes
1 answer
44 views

Certain simple geometry animations [closed]

Asked to draw a quadrilateral with sides 3, 4, 5 and 6, one might create what's shown above, using the tools available in, say geogebra. A moment's reflection indicates that the requirement would be ...
Bill's user avatar
  • 101
3 votes
2 answers
152 views

Constructing the orthocenter of a cyclic pentagon

I’d like to construct the following thing in Georgebra: A non-regular cyclic pentagon $ABCDE$ such that the perpendiculars from $A$ to $CD$, $B$ to $DE$... all concur in one point $H$. I managed to ...
PNT's user avatar
  • 4,164
7 votes
2 answers
160 views

PDF to HTML conversion with accessible mathematics? [closed]

I am mainly searching for resources online for studying mathematics, however I am a visually impaired student taking a Calculus course in comunity college. I notice that most resources are in PDF ...
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2 votes
1 answer
137 views

Open source program that generate "random" theorems by exploration

With some formal systems, it's possible to enumerate all the theorems. This is the case for instance in propositional calculus or in some first-order theories with a recursively enumerable set of ...
Weier's user avatar
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2 votes
1 answer
263 views

Constructing bicentric pentagon

I'm trying to construct a bicentric pentagon in geogebra. I read on Wikipedia that a Pentagon is bicentric if and only if it satisfies this formula $$r(R-x)=(R+x)\left(\sqrt{(R-r)^2-x^2}+\sqrt{2R(R-r-...
PNT's user avatar
  • 4,164
0 votes
1 answer
78 views

Geogebra special segment construction [closed]

Could someone help me constructing such segment AB in Geogebra that would satisfy such properties: by moving the point A the segment moves as a solid body but does not rotate by moving the point B ...
Alakey's user avatar
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0 votes
2 answers
88 views

Is there a visualization tool that shows matrices transforming (multiplying) ellipses?

Matrices send ellipses to ellipses. Is there any online visualization tool where I can enter a matrix $M$ and see a plot of ellipse $e$ being sent to $Me$? This would be very helpful to visualize ...
SRobertJames's user avatar
  • 4,360
0 votes
4 answers
123 views

Finding $a$ such that $\tanh(x)-a\sin^2(x)=0$ has a double root

Given $f(x) = \tanh(x)-a\sin^2(x)$, what is the value of $a$ for which $f(x) = 0$ has a double root, and what is the value of that double root? My Work : Using MAPLE , I plotted a few graphs and ...
Michael Jones's user avatar
2 votes
2 answers
230 views

Geodesics on a Saddle Surface

Does anyone know of any free and relatively easy-to-use math apps like Geogebra that can be programmed (or were explicitly designed) to draw the geodesic between any two selected points on a saddle ...
John's user avatar
  • 179
1 vote
1 answer
64 views

Can someone please help me work out what software is being used to generate these diagrams. [closed]

Function Plot Trigonometry Circle
Fred Clark's user avatar
1 vote
0 answers
145 views

In which software I can draw these customized mathematical figures?

I'm digitizing my math notes, and I'm looking for a suitable software to draw mainly these 4 figures accurately. I've used GeoGebra, but in some cases I'm unable to draw the figure perfectly, for ...
Debtanu Gupta's user avatar
0 votes
0 answers
20 views

meijer G parameters of common functions

I'm trying to understand how a Meijer G function changes in parameters when I change the function a little bit. For example, I know that the meijer G parameters of the following functions \begin{...
Math_Day's user avatar
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0 answers
31 views

How is this mathematical concept "NewValue = (((OldValue - OldMin) * (NewMax - NewMin)) / (OldMax - OldMin)) + NewMin" called?

I'm doing some code and I had to map a value from one range [OldMin, OldMax] to another [NewMin, NewMax]. I came across with this answer: newValue = (((oldValue - oldMin) * (newMax - newMin)) / (...
Sebastian serna's user avatar
2 votes
2 answers
194 views

Why does Desmos not plot $ \sqrt{\frac{(x+y)^2}{2}} = \sqrt{x^2+y^2} + \sqrt{2} $?

I am working on the following problem: I need to find the points above the line $l:y=-x$ for which it holds that the distance to $l$ is $\sqrt{2}$ greater than the distance to the origin. I worked out ...
UnrulyTank's user avatar
0 votes
1 answer
48 views

Hypothesis testing involving linear regression model

Suppose I have range of x and y values which I have produced a linear regression model from. How would you answer this question,"Is the mean response (predicted value) for the y value at x = 12 ...
liam song's user avatar
-1 votes
1 answer
107 views

The sum of the probability of an event and its negation is not exactly 1?

the probability of an event is $(1-0.00015)^{16}$ and its negation has probability $16*0.00015-0.00015^{16}$ but their sum is: $1....
curiousCprogrammer1231's user avatar
0 votes
1 answer
131 views

graphing hyperbolic geodesics on a 3D surface

Does anyone know of a relatively simple and easy-to-use graphics app (like GeoGebra) that can graph hyperbolic geodesics on a hyperbolic paraboloid? I'm trying to graph the geodesics on the top image ...
John's user avatar
  • 179
0 votes
0 answers
23 views

Design system debt calculation

Thanks in advance for your help. I am a designer working on a software platform. I am working on a calculation that captures the amount of redundancy/design debt in our design system on a component ...
SamCC's user avatar
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3 votes
1 answer
43 views

Visual software of Riemannian metric on $S^2$

Consider the unit sphere in $\mathbb R^3$, let $\theta$ be polar angle, $\varphi$ be azimuthal angle. Then, the standard metric is $$ g= \begin{pmatrix} 1 & 0 \\ 0 & \sin^2\theta \end{pmatrix}...
Enhao Lan's user avatar
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0 votes
0 answers
31 views

Where is John C Polking's DField package?

Most sites that had a copy are now blank. I am looking for the version that was based on JRE. There used to be a DField and a PPlane. I am aware of new versions that are tied to MatLab but I am ...
Maesumi's user avatar
  • 3,702
0 votes
0 answers
100 views

How to calculate inverse of large matrix?

I have recently been looking at random variables and did come upon the below matrix (in image form because it is too large to copy): I have been attempting to find the inverse of this matrix, and ...
TheMathsPerson's user avatar
8 votes
0 answers
50 views

Voice-based software for doing mathematics

My uncle is a retired math professor. He has had some serious health issues in the past year, but he is still mentally sharp. For both fun and a distraction, he has been working on a textbook. However,...
jds's user avatar
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0 votes
0 answers
85 views

Help solving this optimisation problem (maximisation of objective function with leontief as constraint)

Would you like to help me solve this optimisation problem? $$ \max_{Y_j,A_j,B_j}\pi_j = p_j Y_j - (p_a A_j + p_bB_j)\\ \text{subject to } Y_j = \min\left(\frac{A_j}{\alpha_a}; \frac{B_j}{\beta_b} \...
Meg's user avatar
  • 15
0 votes
1 answer
76 views

Software to derive analytical/theoretical solutions for constrained optimisation

I am a PhD student in economics. I'm currently dealing with a computable general equilibrium model with many constrained optimisation problems. https://i.stack.imgur.com/36mbU.png As you can see in ...
Meg's user avatar
  • 15
1 vote
0 answers
106 views

Geogebra struggles integrating the derivative of $\sec^{-1}(x)$

I'm currently using Geogebra 6.0.791.0 and I ran into a strange result while trying to integrate the derivative of the $\sec^{-1}(x) = \cos^{-1}(\frac{1}{x})$ function. The first differentiation is ...
haifisch123's user avatar
2 votes
2 answers
398 views

Are there websites on which I can generate a sequence of functions?

I'm trying to find a pattern on the following sequence of functions $g_n: (-1, \infty) \rightarrow \mathbb R$: $$g_{n+1} (x) = g'_n(x) + g_n^2(x)$$ with $g_1(x) = \ln (1+x) + \frac x{1+x}$ and I would ...
hellofriends's user avatar
  • 1,508
0 votes
0 answers
29 views

FindRoot error in NDSolve

I have two coupled differential equations as follows \begin{eqnarray} \frac{\partial }{\partial x}U[x,y] &=&2V[x,y], \notag \\ \frac{\partial }{\partial y}V[x,y] &=&V[x,y]U[x,y]+1, \...
A.D's user avatar
  • 19
2 votes
1 answer
278 views

Is there online calculator for calculating a row echelon form of a matrix over $\mathbb{Z}_n$?

There are many great online calculators for calculating row-echelon forms of matrices, such as this one. But now I need to calculate the row-echelon form of some large matrices over $\mathbb{Z}_n$ (...
Zuriel's user avatar
  • 5,331
0 votes
1 answer
98 views

Peculiar nature of $x\sec x$

Just out of curiosity I typed $x\sec x$ into Desmos and got a strange graph, (umm if you'll call that a graph). Till now I've seen graphs that are some curves. But this function's graph is something ...
MathStackexchangeIsNotSoBad's user avatar
0 votes
0 answers
58 views

Is there software that can find optimal solutions to this layout problem with graph theory?

I am trying to optimize a building layout in a game, and it seems like the problem could be solved by a computer much quicker than by my own trial and error. However, I only have a cursory ...
Lawton's user avatar
  • 1,759
0 votes
1 answer
51 views

Finding the determinant of a $3*3$ matrix that was developed using LaGrangian multiplier to optimize the surface area of a conical frustum

This is the matrix I wrote down. I'm struggling to find its determinant as by hand it would be impractical and would take a lot of time, is there any online calculator or a way to find it quickly, if ...
AH365's user avatar
  • 3
3 votes
0 answers
98 views

Error in desmos while computing $\int_{-\infty}^{\infty}e^{-x^2}dx $

When I was computing this integral $\int_{-\infty}^{\infty}e^{-x^2}dx $ on Desmos I was getting correct answer as $\sqrt \pi.$ But when I started to change the limits of the integration something ...
Ketan's user avatar
  • 99
2 votes
0 answers
58 views

Software Recommendation for Theorem Suggestions

So I am not sure if this software already exists or perhaps this is something that humanity has to embark on to finally have as a product. A bit about myself, I am student training in a sub-area of ...
Ramit's user avatar
  • 85
2 votes
0 answers
61 views

has anyone debugged Conway's Fractran program for digits of pi?

Title says it all. I found an old email thread at this site in which Conway (and others) speculate on the location and cause of the bug, but I have not found a published update. Is there any news ...
Carl Witthoft's user avatar
2 votes
0 answers
167 views

Wolfram Mathematica: why is the plot not visible?

simple question regarding Wolfram Mathematica: Why is the plot not showing? (See screenshot) (I am new to Wolfram Mathematica) Thankful for any input.
JosefS's user avatar
  • 67
0 votes
0 answers
48 views

Software to do formal expansion of $(1+x)^{8/3}$ or an any fraction

I am looking for something light ( suggestions for install are ok) Typically I need to have enough terms for $a^4\left(1+a^{-1}\right)^{\left(8/3\right)}$ None of symbolab / geogebra / quickmath seem ...
Jérôme JEAN-CHARLES's user avatar
1 vote
0 answers
29 views

Plotting envelope of family of curves Maxima

Is it possible to plot envelope of family of curves in Maxima? What is the command. Is there any other free source software? I need for example the envelope of the family of straight lines $$y+tx=2at+...
danny's user avatar
  • 906
1 vote
0 answers
58 views

Aid in finding algebra step-by-step validator tool/application?

I'm looking for an online tool/application that will validate my algebra moves at each step I do them. I'm picturing a text line where I can enter the starting equation, then type in the next step ...
Riko's user avatar
  • 26
-2 votes
1 answer
36 views

Software/library to compute order of element in a group

I need a software/library where I can define an arbitrary multiplicative group of integers modulo n (with large n), input an element, and obtain the order of that element in the group as output.
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