MCordingley\LinearAlgebraTest\MatrixTest::testSubtractScalar PHP Method

    public function testSubtractScalar()
    {
        $matrix = new Matrix([[4, 2, 6], [1, 7, 3], [7, 3, 2]]);
        $subtracted = $matrix->subtractScalar(4);
        static::assertEquals(0, $subtracted->get(0, 0));
        static::assertEquals(-2, $subtracted->get(0, 1));
        static::assertEquals(2, $subtracted->get(0, 2));
        static::assertEquals(-3, $subtracted->get(1, 0));
        static::assertEquals(3, $subtracted->get(1, 1));
        static::assertEquals(-1, $subtracted->get(1, 2));
        static::assertEquals(3, $subtracted->get(2, 0));
        static::assertEquals(-1, $subtracted->get(2, 1));
        static::assertEquals(-2, $subtracted->get(2, 2));
    }