vermotr / php-matrix
Matrix basic implementation.
0.1.0
2015-12-01 09:44 UTC
Requires
- php: >=5.4.0
Requires (Dev)
- phpunit/phpunit: ~4.0
This package is not auto-updated.
Last update: 2025-01-08 20:31:58 UTC
README
Matrix basic implementation.
Installation
composer require vermotr/php-matrix:0.1.0
Alternatively you can add the following to the require section of your composer.json
manually:
"vermotr/php-matrix": "0.1.0"
Usage
There are three ways to instantiate a matrix:
use vermotr\Math\Matrix; // Create a Matrix with its size $matrix = new Matrix(4, 2); // With a bi-dimensional array $matrix = new Matrix([ [0, 1, 2], [3, 4, 5], [6, 7, 8] ]); // With another Matrix $matrix = new Matrix($anotherMatrix);
You can access each element like a bi-dimensional array and display the matrix like so:
$matrix[4][2] = 42;
echo $matrix;
To know the matrix' size, you have access to two getters:
$matrix->getRows(); $matrix->getCols();
In this class, you will find basic operations: add, subtract and multiply (by scalars and Matrices):
$addedScalar = $matrix->add(4); $addedMatrix = $matrix->add($anotherMatrix); $subtractedScalar = $matrix->subtract(2); $subtractedMatrix = $matrix->subtract($anotherMatrix); $multipliedByScalar = $matrix->multiply(2); $multipliedByMatrix = $matrix->multiply($anotherMatrix);
You can also compare two matrices with the equals
method:
if ($matrix1->equals($matrix2)) { // Do something! }
There are some useful methods implemented in this class:
$matrix->adjugate(); $matrix->cofactor(); $matrix->determinant(); $matrix->inverse(); $matrix->subMatrix(); $matrix->transpose();
Changelog
- 0.1.0
- Created the Matrix type
- Scalar Addition
- Matrix Addition
- Scalar Subtraction
- Matrix Subtraction
- Scalar Multiplication
- Matrix Multiplication
- Adjugate
- Cofactor
- Determinant
- Inverse
- Submatrix
- Transpose