File: function_factorial.kbs

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# function test - Recursive function to calculate factorial
# 2012-10-04 j.m.reneau
# BASIC-256 version 0.9.6.74 or better

for n = 1 to 20
   print n + "! =" + fact(n)
next n
end

function fact(n)
   if n >=2 then
      fact = fact(n-1) * n
   else
      fact = 1
   end if
end function