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14 views

Unexpected CountourPlot behavior at corners

With Mma 12.0 on Win 10, I'm seeing an unexpected white line in the following ContourPlot. ...
32 views

Removing Duplicates in List of Lists

I have in Mathematica a list of lists like this: ...
23 views

How to follow symbolic links on disk?

In this question we learn that we can use FindFile to get the disk location of a package. However, I have some packages that are installed into my ...
25 views

Mathematica Error Message Help [duplicate]

when using NMaximize[], I keep getting the following error message: Can someone please explain what <<99>> + <<86>> = 0 means?
16 views

How can I generate a Poisson gap sampled list?

tstart = 0; tend = 3; num = 1024; tstep = (tend - tstart)/(num - 1); list = Table[i, {i, tstart, tend, tstep}] // N; Histogram[list] I have a list of 1024 points ...
24 views

Bivariate Gaussian Distribution [on hold]

The bivariate Gaussian curve appears as a mountain. I was just looking at it and then a thought came to my mind, Are there any points inside the mountain/3d object(Obviously we cannot see them) or all ...
22 views

How to train custom objects using YOLO in Mathematica?

I want to train few custom object using YOLO V2 architecture but not sure how to do this. I know that with the NetTake and NetReplace, this is achievable. Can someone point out me in the right ...
35 views

what code do I need to use for a step by step Gaussian eliminations and Cramer's Rule, with a 21x21 matrix?

I am trying to show step by step calculations by using mathematica calling wolfram alpha API and for some reason its interpreting as one number. There are do matrices, matrix a is for the variable ...
28 views

How I can obtain u and z?

Integrate[1/Sqrt(2*Cosh[y] - 2*Cosh[u]) , {y, z, u}] == 0.013 2*Cosh[z] - 2*Cosh[u] == 0.41 Can I obtain the parameters of u and z using above equations?
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30 views

Printing Values Within a Function

Below is a function to calculate the overlap between two gaussian functions. ...
41 views

Hammer projection to rectangular

This might be more of a mathematical problem than a Mathematica'l one, but still, maybe you'd help me. I want to write a function that would produce a rectangular image from an image with Hammer ...
30 views

How to return the equal points between two lists

I have something like this ...
25 views

How to make a StyleSheet with certain text in some cell types like Subsection, Subsubsection and alike?

I am modifying several StyleSheets to adapt them to convenient use at school. Now I am working on the StyleSheet for Mathematics classes. I would like to make several types of default headings on the ...
11 views

How to make a StyleSheet with a custom-defined Cell type that will be open by default?

I am making a StyleSheet to conveniently use them for homeworks and class works in Mathematics classes. I base it on the JournalArticle StyleSheet. I would like to make it such that by Default opens ...
35 views

probability of one sum greater than another sum [migrated]

There are two group of competitors, say, group A and group B. the members in group A are denoted as a1, a2, …, ai,.., aN; The members in group B are denoted as b1, b2, …, bi, …bN. Each member in ...
34 views

Map list of functions over list of inputs

Given a list of functions {f1, f2, f3, ...} and list of inputs {1, 2, 3, ...} I wish to produce the list ...
36 views

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Difficult Eigenvalue Problem

I have an eigenvalue problem of the form: f''(x)+V(x,lambda)f(x)=0 with Dirichlet boundary conditions: f(a)=A f(b)=B The eigenvalues lambda are complex, so they have both a real and imaginary part. ...
24 views

Nesting, Manipulate and TabView

I have a Demonstration that employs TabView to show three related but slightly different functions, each view having slightly different controls. I can make it work fine nesting Manipulate in each Tab ...
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27 views

How to find the Maximal Absolute Error?

I found this fit but I do not understand how to find the maximal absolute error nor do I understand what it is really. I do not see what it is I would compare, would it be ...
41 views

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Is it possible to speed up SDE simulation?

Is it possible to speed up SDE simulation in Mathematica? I am simulating a large number of Heston processes that look like the following (note this code is only a slight modification of the ...
102 views

N body simulation

Im trying to solve a 3 body problem consisting of the earth moon and sun. I'm wanting to show the earth orbiting the sun and the moon orbiting the earth as a result of the gravitational forces. Where ...
31 views

ListDensityPlot and DensityPlot do not give the same results?

I am plotting the same function using ListDensityPlot and DensityPlot but the output is different! There are some points where ...
71 views

How to solve transient 3D heat equation with robin boundary conditions

Good afternoon! I'm trying to solve the following heat equation: with the following boundary conditions and initial value: Nut I'm getting error while solving it with NDSolve: ...
50 views

Formatting in *.m file

I have my own package (just a bunch of functions) in the *.m file, which I load using the Needs[] command. Everything works fine ...
61 views

Labeling a plot point under the axis

This works well: Plot[x, {x, 0, 1}, Epilog -> Text[1/2, {1/2, 0.1}]] This doesn't (the "1/2" label is not visible): ...