Problem with Precision floating point operation in C

Question

For one of my course project I started implementing \"Naive Bayesian classifier\" in C. My project is to implement a document classifier application (especially Spam) using huge

Answer 1

I am not strong in math so I cannot comment on possible simplifications to the formula that might eliminate or reduce your problem. However, I am familiar with the precision limitations of long double types and am aware of several arbitrary and extended precision math libraries for C. Check out:

http://www.nongnu.org/hpalib/ and http://www.tc.umn.edu/~ringx004/mapm-main.html