func mc n .
   for i = 1 to n
      x = randomf
      y = randomf
      if x * x + y * y < 1
         hit += 1
      .
   .
   return 4.0 * hit / n
.
numfmt 4 0
print mc 10000
print mc 100000
print mc 1000000
print mc 10000000