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ivyl/math.rb

Created December 13, 2008 21:09
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math.rb
#PI 1 + 1000 numbers
p -4*(0..10**9).inject{|r,e|r+(10**1000*(-1)**e/(2*e-1))}
#E 1 + 1000 numbers
p (1..10**3).inject(0){|r,e|r+(e==1?2:1)*(10**1000)/(1..e).inject{|r,e|r*e}}
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