Every byte is sacred.
Every byte is great.
If a byte is wasted,
God gets quite irate.

Excellent response. May I only add that there is a good overview of the types of math used by many programmers in the MIT Open Course "Mathematics for Computer Science"
http://ocw.mit.edu/OcwWeb/Electrical-Engineering-and-Computer-Science/6-042JSpring-2005/LectureNotes/index.htm