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* math.c (Init_Math): backport asin, acos, atan.

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git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_6@2525 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
matz 2002-06-05 09:54:09 +00:00
parent 605ac74db3
commit 7c3537f27d
3 changed files with 44 additions and 3 deletions
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6
lib/rational.rb
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@ -8,7 +8,7 @@
# --
# Usage:
# class Rational < Numeric
# (include Compareable)
# (include Comparable)
#
# Rational(a, b) --> a/b
#
@ -47,7 +47,7 @@ class Rational < Numeric
@RCS_ID='-$Id: rational.rb,v 1.7 1999/08/24 12:49:28 keiju Exp keiju $-'
def Rational.reduce(num, den = 1)
raise ZeroDivisionError, "denometor is 0" if den == 0
raise ZeroDivisionError, "denominator is 0" if den == 0
if den < 0
num = -num
@ -132,7 +132,7 @@ class Rational < Numeric
den = @denominator * a.numerator
Rational(num, den)
elsif a.kind_of?(Integer)
raise ZeroDivisionError, "devided by 0" if a == 0
raise ZeroDivisionError, "divided by 0" if a == 0
self / Rational.new!(a, 1)
elsif a.kind_of?(Float)
Float(self) / a