/usr/share/doc/ruby1.8-examples/examples/bigdecimal/pi.rb is in ruby1.8-examples 1.8.7.352-2ubuntu1.6.
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 | #!/usr/bin/ruby1.8
#
# pi.rb
#
# Calculates 3.1415.... (the number of times that a circle's diameter
# will fit around the circle) using J. Machin's formula.
#
require "bigdecimal"
require "bigdecimal/math.rb"
include BigMath
if ARGV.size == 1
print "PI("+ARGV[0]+"):\n"
p PI(ARGV[0].to_i)
else
print "TRY: ruby pi.rb 1000 \n"
end
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