php-armadillo/stubs/Mat.php

<?php

namespace Arma;

/**
 * Interface for a dense matrix.
 *
 * @package Arma
 */
interface Mat extends Internal\Accessible, Internal\Operable, Internal\MatBase
{
    /**
     * Construct the matrix to have user specified dimensions and fill with specified pattern.
     *
     * @param int $n_rows
     * @param int $n_cols
     * @param int $fill[optional]
     * @return static
     */
    static function init($n_rows, $n_cols, $fill);

    /**
     * Create the matrix from a textual description.
     *
     * @param string $text
     * @return static
     */
    static function fromString($text);

    /**
     * Create the matrix from a column or row vector.
     *
     * @param Colvec|Rowvec $vector
     * @return static
     */
    static function fromVec($vector);

    /**
     * Create the matrix from a sparse matrix.
     *
     * @param SpMat $sp_mat
     * @return static
     */
    static function fromSparse($sp_mat);

    /**
     * Set all the elements to random values, optionally first changing the size to specified dimensions.
     *
     * Uses a uniform distribution in the [0,1] interval.
     *
     * @param int $n_rows
     * @param int $n_cols
     * @return void
     */
    function randu($n_rows, $n_cols);

    /**
     * Set all the elements to random values, optionally first changing the size to specified dimensions.
     *
     * Uses a normal/Gaussian distribution with zero mean and unit variance.
     *
     * @param int $n_rows
     * @param int $n_cols
     * @return void
     */
    function randn($n_rows, $n_cols);
}