MathPHP\LinearAlgebra\FunctionSquareMatrix::__construct PHP Метод

    public function __construct(array $A)
    {
        $n = count($A);
        $m = count($A[0]);
        if ($m !== $n) {
            throw new Exception\BadDataException("n must equal m for square Function Matrix. n = {$n}, m = {$m}");
        }
        parent::__construct($A);
    }