blob: c071e4500e864320103d3c3e30facce652bc41ae (
plain) (
tree)
|
|
<?php
/**
*
* Function code for the matrix cofactors() function
*
* @copyright Copyright (c) 2018 Mark Baker (https://github.com/MarkBaker/PHPMatrix)
* @license https://opensource.org/licenses/MIT MIT
*/
namespace Matrix;
/**
* Returns the cofactors of a matrix or an array.
*
* @param Matrix|array $matrix Matrix or an array to treat as a matrix.
* @return Matrix The new matrix
* @throws Exception If argument isn't a valid matrix or array.
*/
if (!function_exists(__NAMESPACE__ . '\\cofactors')) {
function cofactors($matrix): Matrix
{
if (is_array($matrix)) {
$matrix = new Matrix($matrix);
}
if (!$matrix instanceof Matrix) {
throw new Exception('Must be Matrix or array');
}
return Functions::cofactors($matrix);
}
}
|