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Mathematica : Recent Questions and Answers (Page 214)

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

Converting a list to an array

Let's assume that I have a list that I can access like list[[i, j]] How can I convert it to an array such that: my_array[i, j] = list[[i, j]] In...

Asked on 12/15/2020

2 answer

Questions on GeoGraphics

I am trying to use GeoGraphics for some land navigation. In the spirit of showing my work, here is what I've done so far:battleAx = GeoBoundsRegion[{{44.5, 45.75}, {-123., -122}}];colWay...

Asked on 12/15/2020 by David Keith

1 answer

Two vertical axes in the same plot

Frequently for convenient experimental data analysis it is necessary to present results with two vertical axes in the same plot with different scale and distance between ticks. I've tried to...

Asked on 12/15/2020

1 answer

Rewrite ListPlot using Graphics while perserving point color?

I have a lot of data points, and I have noticed that plotting using Graphics is usually much quicker than plotting with ListPlot. The problem is I am trying to...

Asked on 12/15/2020 by Illari

3 answer

How can I parallaize expresion that contains ParallelSum?

I have this code where the last part contains ParallelSumtc = {{0, 0, 0, 0}, {0, 0, 0, 0}, {-1, 0, 0, 0}, {0, -1, 0, 0}};m1[x_, y_] :=...

Asked on 12/15/2020 by HD2006

0 answer

Best way to solve for domain on which a function is real

Say I have a function like1/(-54 + 1458 x + 6561 y + Sqrt[ 4 (-9 + 162 x)^3 + (-54 + 1458 x + 6561 y)^2])^(...

Asked on 12/15/2020 by Kvothe

3 answer

Coloring lines as a function of coordinates

I want to colorize lines as a function of coordinates in 3D. Here is my code. In this graphic I used one color. My aim is using a color function...

Asked on 12/15/2020 by Mustafa Kösem

1 answer

Calculating boundaries for a multiple integral from inequalities

I was trying to solve for the region enclosed by y=Sqrt[x], z=1+x+y, y=0, and x=1, to evaluate a triple integral of 6xy. So far I have tried to this code...

Asked on 12/15/2020 by Jackie Carson

1 answer

NDSolve becomes very slow when the integration domain is 4 dimensional

I am trying to solve a PDE problem on a 4d manifold (3 space + 1 time). However, NDSolve becomes very slow when I jump from 3 to 4 dimensions....

Asked on 12/15/2020

1 answer

Performing mathematical operation on the y coordinates in a list of coordinates

I have a list that contains a set of coordinates in the form {{x1,y1}, {x2,y2}, ...}. I want to edit the list in manner that it takes the log() of...

Asked on 12/14/2020 by Anon77

1 answer

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