Appendix H - Circumference Lookup Table

The table below is used to determne the value of the Elliptical PI, based on the ratio b/a.

To use this programmatically, you can download the C# file from the following link:

EllipseTable

Usage:

Elliptical Pi = EllipseTable.PI(b/a);

where b is semi minor axis and a is semi major axis

The benefit of using ePI(b/a) is that now you can calculate the value of the circumference for any ellipse as follows: