Question

hi! question! for #2 in ps2 so the code is
def compute_deriv(poly):
poly_deriv=[]
for i in range(1, len(poly)):
poly_deriv.append(float(i*poly[i]))
return poly_deriv
why is the range(1, len(poly)) and not (0, len(poly))?

Answer 1

Just for fun, run it with the line: print poly[0] and see what poly[0] is. Sometimes it's convenient to use a list as one based instead of zero based. The real answer will be in the code that builds poly.

Answer 2

thanks!