| x | Numerical | Exact | Abs. Error |
| 0.628319 | 0.587831 | 0.587602 | 0.000228 |
| 1.884956 | 0.951078 | 0.950759 | 0.000320 |
| 3.141593 | −0.000030 | 0.000000 | 0.000030 |
| 4.398230 | −0.951099 | −0.950759 | 0.000339 |
| 5.654867 | −0.587775 | −0.587602 | 0.000173 |