MathPHP\LinearAlgebra\MatrixOperationsTest::testSubtract PHP Метод

    public function testSubtract(array $A, array $B, array $R)
    {
        $A = MatrixFactory::create($A);
        $B = MatrixFactory::create($B);
        $R = MatrixFactory::create($R);
        $R2 = $A->subtract($B);
        $this->assertEquals($R, $R2);
        $this->assertInstanceOf('MathPHP\\LinearAlgebra\\Matrix', $R2);
    }