title: math function "Log ()"
body: <p>Is there a way to implement the math function Log() into an equation with an iphone app? im working on right now that without the log function requires about 400 + if and else if statements. I have already wrote out these if and else if statements. half of them work and the other half keeps returning 0.00 . after HOURS of trying to find the problem and compare it to the part that does work i can still not figure it out. i know i can do simple math  (add, subtract, divide, mulitply, etc), but i havnt found anything searching forums, google, etc that tells me how to add a Log function. if i could do this i can cut my code down from like 500 lines to about 40 tops. can anyone help me with this or at least point me in the right direction as to where i can find a thread or tutorial on this?</p>