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ruby--ruby/sample/fact.rb
matz 3db12e8b23 Initial revision
git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@2 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
1998-01-16 12:13:05 +00:00

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96 B
Ruby

def fact(n)
if n == 0
1
else
n * fact(n-1)
end
end
print fact(ARGV[0].to_i), "\n"