public void ConvertToPostFix() { Logger.EnableAll(); var exp = "3 + 9*5-Cos30"; Logger.WriteInfor($"Expression: {exp} "); var tokens = Token.Tokenize(exp); var postFix = ReversePolishNotation.ConvertToPostFix(tokens); var actual = ReversePolishNotation.EvaluatePostFix(postFix); double expected = 3.0 + 9.0 * 5.0 - Math.Cos(30.0 * Math.PI / 180.0); Assert.AreEqual(expected.ToString("f3"), actual.ToString("f3")); Logger.Disable(); }