/*

      mean -  Numerator program to calculate the arithmetic mean of
              a series of numbers.

          Set the verbose variable to a non-zero value 

               verbose = 1

          to make queries and produce other prompts.  Otherwise, this
          file can be used like a function.
*/


if (verbose) 
   "Enter next number\n"
   "Enter 0 to end list\n"
endif
get val
tot = tot + val
items = items + 1
if (val != 0)
	do "mean"
endif
if (verbose)
   "Arithmetic mean = "
endif
tot / (items - 1)
tot = 0
items = 0