void TestMultiplication (Matrix44 a, Matrix44 b, Matrix44 expected )
{
// This test asserts the following:
// a * b == expected
Matrix44 result_1b; Matrix44.Multiply(ref a, ref b, out result_1b);
Assert.That(result_1b, Is.EqualTo(expected));
#if (VARIANTS_ENABLED)
var result_1a = a * b;
Assert.That(result_1a, Is.EqualTo(expected));
#endif
}