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Mathematica : Recent Questions and Answers (Page 23)

Find answers to your questions about Mathematica or help others by answering their Mathematica questions.

Integration gives wrong result

Already several pages of stack exchange dedicated to the integration problem in Mathematica. However, by reading them I did not find solution to my own integral. I know from NIntegrate...

Asked on 09/02/2021 by Rasoul-Ghadimi

2 answer

How to choose the shortest route? (Vehicle routing problem)

This question is about a small instance of the classical vehicle routing problem (VRP). Someone needs to start from home and complete the three tasks of going...

Asked on 09/01/2021

3 answer

Improving mesh and NDSolve solution convergence

I have developed the code below to solve two PDEs; first mu[x,y] is solved for, then the results of mu are used to solve for phi[x,y]. The code works and...

Asked on 09/01/2021 by kjcole

1 answer

How to link Manipulate to specific questions to activate sliders

I have the following multiplication Manipulate:Manipulate[ x*y, {x, 1, 10}, {y, 5, 15} ...

Asked on 09/01/2021

2 answer

Functions of several variables composition

If we have two functions $G,F:mathbb R^2tomathbb R^2$ then the mechanism$Fcirc G(x,y)=F(G(x,y))$ gives us a new map $Fcirc G:mathbb R^2tomathbb R^2$ called its composition. In a...

Asked on 09/01/2021 by janmarqz

0 answer

How to copy Mathematica code with subindices in a readable way?

I'm trying to post some Mathematica code that makes heavy use of indices on a blog, and when copying and pasting I end up with unreadable stuff likeCos[Subscript[[Theta], 0]...

Asked on 08/31/2021 by Fernando Martin

0 answer

How to add two labels to a point in ListPlot, and how to control the precise positions of those labels?

ListPlot has the option to label points using Labeled or Callout. At least those are the two ways to do it of which I am aware of. A simple example:...

Asked on 08/31/2021

2 answer

How to write this piece of code without AppendTo

I am trying to fill a vector starting from component 11 from another vector, I use this code:Do[AppendTo[xp, x[[i + 10]]], {i, 1, 99982}]How can I fill xp without...

Asked on 08/31/2021

1 answer

Why does Mathematica import data with quotation?

I am importing data from ParallelTable as dat file and then export it again for visualization. However, the exported data contains a quotation " " and can not use...

Asked on 08/31/2021

1 answer

How do you stop a For loop from progressing until a condition has been met?

I have a matrix and the generation of a number between 0 and 1 (this number will act as a probability):matrix1 = {{1, 0, 7, 5}, {0, 1, 8,...

Asked on 08/31/2021

0 answer

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