MathPHP\LinearAlgebra\MatrixOperationsTest::testSubtractExceptionColumns PHP Метод

    public function testSubtractExceptionColumns()
    {
        $A = MatrixFactory::create([[1, 2, 3], [2, 3, 4]]);
        $B = MatrixFactory::create([[1, 2], [2, 3]]);
        $this->setExpectedException('MathPHP\\Exception\\MatrixException');
        $A->subtract($B);
    }