public void AddMatricesTest()
{
Matrix3x3 expectedResult = new Matrix3x3();
expectedResult.V00 = 3;
expectedResult.V01 = 3;
expectedResult.V02 = 6;
expectedResult.V10 = 4;
expectedResult.V11 = 5;
expectedResult.V12 = 3;
expectedResult.V20 = 4;
expectedResult.V21 = 5;
expectedResult.V22 = 3;
Matrix3x3 result = a1 + a2;
Assert.AreEqual(true, ApproximateEquals(result, expectedResult));
}