Hallo Raghunathan,

heaven, it was never suggested by me to implement this formula! This would be indeed very crazy. Only to have some high precission reference for testing whether a certain approximation formula or look-up-table is well suited or not. I already stated in an other reply, that tracking mismatch of about 10° would only result in power loss of 1.5%. So, any too high precision of tracking would be completely without any sense!!!

The advantage of website I recommended to have a look at, is, that there is also published a QBASIC program, which just can run on PC. So, Mahmood could have saved the time of writing program.

That was the sense of my link.

I'm highly convinced, that there is possibility of very simple formula resulting in enough precicion. But you have to find it: Either by adapting a ready solution or by making some own research.

Bye,
Kai