https://github.com/friguzzi/matrix

Operations with matrices, SWI pack
https://github.com/friguzzi/matrix

Last synced: 7 months ago
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Operations with matrices, SWI pack

• Host: GitHub
• URL: https://github.com/friguzzi/matrix
• Owner: friguzzi
• Created: 2016-08-11T19:48:41.000Z (almost 10 years ago)
• Default Branch: master
• Last Pushed: 2023-12-11T07:47:56.000Z (over 2 years ago)
• Last Synced: 2024-02-15T07:34:19.028Z (over 2 years ago)
• Language: Prolog
• Homepage:
• Size: 47.9 KB
• Stars: 9
• Watchers: 5
• Forks: 2
• Open Issues: 0
• Metadata Files:
  • Readme: README.md

Awesome Lists containing this project

• awesome-prolog - matrix - Matrix operations. (Math)

README

          
# matrix

SWI-Prolog pack for matrix operations. 

Implemented operations:

 - sum

 - difference

 - multiplication

 - Cholesky decomposition https://en.wikipedia.org/wiki/Cholesky_decomposition

 - determinant for positive semi-definite matrices (using Cholesky decomposition)

 - inversion for positive semi-definite matrices (using Cholesky decomposition)

 - inversion for lower triangular matrices 

 - identity matrix

 - diagonal matrix

The library was developed for dealing with multivariate Gaussian distributions, 

that's the reason for the focus on positive semi-definite matrices

Example of use

---------------

    $ swipl

    ?- use_module(library(matrix)).

    ?- determinant([[2,-1,0],[-1,2,-1],[0,-1,2]],D).

    D = 3.999999999999999.

## Documentation

https://friguzzi.github.io/matrix