hi, On Sat, Oct 03, 2015 at 10:40:57AM -0700, Ronald Cosentino wrote: > def funA(x,y,z): > return (x+y) * z > def funB(x,y): > return(x-y) > print(funA(4,funB(2,3), funB(3,2))) > > the answer is 3. I don't know how it works.
it's simple: - there is a "composition of functions", generally f(g()) (function in argument list of another function) - first, Python evaulates the arguments first, from left to right - in this point, you'll get -1 for 2nd arg, and 1 for 3rd arg - then your funcA() will be called with these arguents: 4, -1, 1 - funcA() calculates this: (x+y)*z, in this case (4+(-1))*1 which is 3... a. -- I � UTF-8 -- https://mail.python.org/mailman/listinfo/python-list