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rdoc update.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@25825 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
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akr 2009-11-17 13:24:53 +00:00
parent 85bf0a2eb6
commit 10b7e0e4ad
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math.c
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@ -600,7 +600,7 @@ math_erfc(VALUE obj, VALUE x)
* Calculates the gamma function of x.
*
* Note that gamma(n) is same as fact(n-1) for integer n > 0.
* However gamma(n) returns float and possibly has error in calculation.
* However gamma(n) returns float and can be an approximation.
*
* def fact(n) (1..n).inject(1) {|r,i| r*i } end
* 1.upto(26) {|i| p [i, Math.gamma(i), fact(i-1)] }