code: def estimate_complexity(self, x,y,z,n):
          
          num_calculations = x * y * z * n
          run_time = num_calculations / 100000  # a 2014 PC does about 100k calcs in a second (guess based on prior logs)
          return self.show_time_as_short_string(run_time)
docs: calculates a rough guess of runtime based on product of parameters