Sum of series - sum = sum + ith term
This video explains how to find sum of first n natural numbers
sum of first n odd numbers
factorial n
sum of sine series
sum of cosime series
sum of exponential series
using one generic equation - sum = sum + ith term
one small correction please - in the last method, exp(x,n)
pease consider, s = s + Math.pow(x, i-1) / f(i-1)
in place of s = Math.pow(z, i-1) / f(i-1)