Turbo mode(Shift+green flag) is recommended. f(n) : Sums of exp(2*pi*i*(n/dd+n^2/mm+n^3/yy) , n=1 to nmax Please try dd=11,mm=21,yy=31 or dd=10, mm=7, yy=17
https://www.maths.unsw.edu.au/about/exponential-sums https://www.johndcook.com/blog/2017/10/07/exponential-sums-make-pretty-pictures/