# All Questions

56 views

### Error with ND Solve

I am new to Mathematica, and I am having some issues solving a homework problem of a differential equation. Here is the code: ...
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89 views

### Vertex Order of Graph

Given a graph, I want to find the shortest distance between each pair of vertices: ...
86 views

### What is the best way to transfer arbitrary-precision reals using WSTP?

I'm developing a Mathematica package, inside of which there is a number-crunching function. It uses a list of arbitrary-precision numbers as input and it takes a lot of time to do its job. So I've ...
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### Evaluating a derivative at a specific point [closed]

I'm quite new to Mathematica (and stackexchange) so I'm getting stuck on something simple. I have the expression  \phi_{n}(z,s)=q^n\left[-\frac{e^{-sb}z \left((1-q)^{\lfloor \gamma\rfloor} ...
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### Custom multivariate discrete distribution [closed]

This is related to How to define an n-variate empirical distribution function probability for any n? and RandomVariate from 2-dimensional probability distribution but I don't think neither questions ...
54 views

### How to use the {{ lhs == rhs, ineqs }, … } form of Exclusions?

I am trying to make use of this option: To plot the principal portion of Tan: ...
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### Plotting roots for a singular numerically-only integrable equation

In my problem I need to plot roots with respect to a parameter. But the condition for root is det(Function)=0. This function cannot be solved symbolically. So I need to put in a parameter value and ...
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### NDSolveValue returns NDSolveValue::ndnum [closed]

How do I solve this problem? ...
94 views

### Coloring image components according to their area

I have a rasterized image img that is created by this code: ...
109 views

### How can I temporarily suspend the Combinatorica package?

Sometimes after I load the Combinatorica package by entering Needs["Combinatorica"], I need to use Mathematica for something like: ...