MathPHP\LinearAlgebra\MatrixFactory::checkParams PHP Method

    private static function checkParams(array $A, int $n = null) : bool
    {
        if (empty($A)) {
            throw new Exception\BadDataException('Array data not provided for Matrix creation');
        }
        if (isset($A[0]) && is_array($A[0])) {
            $column_count = count($A[0]);
            foreach ($A as $i => $row) {
                if (count($row) !== $column_count) {
                    throw new Exception\MatrixException("Row {$i} has a different column count: " . count($row) . "; was expecting {$column_count}.");
                }
            }
        }
        return true;
    }