Mathematica Questions, Problems & Solutions : TransWikia.com ~ Page 206

How are the CPU cores distributed to each kernel in parallelization calculation?

Just want to make sure that I understand correctly before I ask questions. I saw some people saying that some functions in Mathematica will automatically use multi-cores (I am not...

Asked on 12/25/2020 by millhu

2 answer

How to use the function `Resolve` to verify this conclusion?

Let A be a non-zero square matrix of order n, $ A^{*}$ be the adjugate matrix of A, and $A^{T}$ be the transposition matrix of A. now we...

Asked on 12/25/2020

0 answer

How can I calculate the limit without using L'Hôpital's rule

I need to prove this limit without using L'Hôpital's rule: $$lim_{xto 0} frac{(1+a,x)^{1/4} - (1+b,x)^{1/4}}{x} = frac{a-b}{4}$$ How can I do it in Mathematica?...

Asked on 12/25/2020 by Black Marik

4 answer

Want neural net example of rules {vector->string}

I am using data samples from a multispectral color sensor for color classification as an exercise in beginning to learn about neural networks. I have succeeded with Classify for two...

Asked on 12/24/2020 by John Davis

1 answer

Failed to connect remote Mathematica kernel using J/Link

I'm trying to connect to a remote Mathematica 8 kernel (on a Windows machine) using J/Link. On the client machine, I put the JLinkNativeLibrary.dll file in C:Documents and SettingsUserMy Documents....

Asked on 12/24/2020 by user1832237

4 answer

Exporting several prisms (or Polyhedrons) to stl (with filled inner space)

I want to export hundreds of prisms to stl. And for this stl file to be 3D printable, its inner space must be filled. I've tried two approaches to solve...

Asked on 12/24/2020 by dodo_nuna_2nd

2 answer

DSolve[] and initial conditions

Take some simple function of 2 variables, e.g. f[x_,y_] := x+y and try to solve a PDE of it for the general solution:DSolve[{Derivative[1,0][f][x,y] == 1, Derivative[0,1][f][x,y] == 1},f,{x,y}]This works...

Asked on 12/24/2020 by Daniel Huber

0 answer

Can't compute the Integral

I tried to calculate an integral with the function Integrate, but it runs for a long long time without any answer. I have been checking the integrand and it seems...

Asked on 12/24/2020

2 answer

How to eliminate $x,y$ from that system?

The system is as followssys={a*Tan[x] == b*Tan[y], a*Sin[x]^2 + b*Cos[x]^2 == m, b*Sin[y]^2 + a*Cos[y]^2 == n}My approachs areEliminate[{a*Tan[x] == b*Tan[y], a*Sin[x]^2 + b*Cos[x]^2 == m, b*Sin[y]^2 +...

Asked on 12/24/2020 by user64494

2 answer

How to create some macros

I have two question in one. In the following code, I want to manipulate a plot in a centered cell. It is fastiduous to try always to remember the way...

Asked on 12/24/2020 by cyrille.piatecki

2 answer

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