# Questions tagged [wolfram-mathematica]

Wolfram Mathematica is a computer algebra system and programming language from Wolfram Research. Mathematica has its own StackExchange site at http://mathematica.stackexchange.com/

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### Plot of massless particles on the unstable null circular geodesic

My friend and I were trying to reproduce Figure 4(left), page 7, from the paper "Probing phase structure of black holes with Lyapunov exponents", Guo 2022. We succeeded in reproducing the ...
79 views

### Butter side up?

I've written a piece of code that determines if a piece toast with butter lands on the butter-side or not, depending on its initial velocity and the table height. The code is written in Mathematica ...
69 views

### Simulation of a mechanical arm

The code that I am doing is to simulate a scenario where a mechanical arm search pieces closer and these pieces selected the mechanical arm leaves in a position defined closer. ...
139 views

### Two knot-removal function for curve and surface

Recently, I have been using the Wolfram LibraryLink wrapper. By that technique, I could call the function written in C from Wolfram Mathematica. Here are two C wrapper functions, ...
2k views

### Benchmarks of various scientific programming languages for theoretical modelling

For a theoretical modelling course for biology students, I am trying to decide which would be the best technical programming language for doing evolutionary simulations in terms of elegance and ...
168 views

### Super Resolution in the Wolfram Language, Attempt 2

This is a wolfram language program I wrote for super-resolution, in this case meaning to guess at how to increase the the resolution, and so detail shown in a raster image such as a photograph. It ...
308 views

### Super Resolution in the Wolfram Language

This is a wolfram language program I wrote for super-resolution, in this case meaning to guess at how to increase the the resolution, and so detail shown in a raster image such as a photograph. It ...
1k views

### Fill upper triangular matrix from a list

I am looking a good way to fill up the elements of a lower triangular matrix from a list. I currently have this: ...
1k views

### Fastest way to find all neighbours of a vertex in a graph

I'm looking for the fastest way to find all neighbours of a vertex in an undirected Graph. Please improve on the code if possible. ...
490 views

### Directed graph similarity calculation -- optimizing Mathematica code

I am looking to optimize the following computation. First, some explanations: Explanation I have a directed graph whose adjacency matrix may only contain 1s and 0s. The similarity of nodes i and j ...