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Dos/V Magazine 2002 July 1
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calc
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pi3.cef
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2002-08-18
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259 b
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#!/usr/local/bin/clip
#ë~Äⁿùª(æèë┴æèŵò╜ï╧) pi
:float \16
@a = 1; @b = 1 / sqrt 2.0; @s = 1; @t = 4
for @i = 0; @i < 3; @i++
@l = @a; @a = (@a + @b) / 2; @b = sqrt (@l * @b)
@s -= @t * (@a - @l) * (@a - @l); @t *= 2
next
(@a + @b) * (@a + @b) / @s