MathPHP\LinearAlgebra\MatrixAxiomsTest::testScalarMultiplicationOrderAddition PHP Method

    public function testScalarMultiplicationOrderAddition(array $A, array $B, int $r)
    {
        $A = MatrixFactory::create($A);
        $B = MatrixFactory::create($B);
        // r(A + B)
        $A＋B = $A->add($B);
        $r⟮A＋B⟯ = $A＋B->scalarMultiply($r);
        // rA + rB
        $rA = $A->scalarMultiply($r);
        $rB = $B->scalarMultiply($r);
        $rA＋rB = $rA->add($rB);
        $this->assertEquals($r⟮A＋B⟯->getMatrix(), $rA＋rB->getMatrix());
    }