GGBNA 2012 #11 - Iterating Trig Functions
This is a "What-If-Not" variation on the iteration theme. Instead of using numbers, we are using trig functions in the spirit is Chebyshev Polynomials http://en.wikipedia.org/wiki/Chebyshev_polynomials to iterate the rule .
You can change the two starting functions, as well as the number you are adding in the numerator.