Bug #13233 ยป rdoc_rational.patch
rational.c | ||
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*
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* Returns the absolute value of +rat+.
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*
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* (1/2r).abs #=> 1/2r
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* (-1/2r).abs #=> 1/2r
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* (1/2r).abs #=> 1/2r
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* (-1/2r).abs #=> 1/2r
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*
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* Rational#magnitude is an alias of Rational#abs.
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*/
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... | ... | |
*
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* Returns the truncated value as an integer.
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*
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* Equivalent to
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* rat.truncate.
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* Equivalent to Rational#truncate.
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*
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* Rational(2, 3).to_i #=> 0
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* Rational(3).to_i #=> 3
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... | ... | |
* Rational(2, 3).floor #=> 0
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* Rational(-3, 2).floor #=> -1
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*
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* decimal - 1 2 3 . 4 5 6
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* ^ ^ ^ ^ ^ ^
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* precision -3 -2 -1 0 +1 +2
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* # decimal - 1 2 3 . 4 5 6
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* # ^ ^ ^ ^ ^ ^
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* # precision -3 -2 -1 0 +1 +2
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*
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* '%f' % Rational('-123.456').floor(+1) #=> "-123.500000"
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* '%f' % Rational('-123.456').floor(-1) #=> "-130.000000"
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... | ... | |
* Rational(2, 3).ceil #=> 1
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* Rational(-3, 2).ceil #=> -1
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*
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* decimal - 1 2 3 . 4 5 6
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* ^ ^ ^ ^ ^ ^
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* precision -3 -2 -1 0 +1 +2
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* # decimal - 1 2 3 . 4 5 6
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* # ^ ^ ^ ^ ^ ^
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* # precision -3 -2 -1 0 +1 +2
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*
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* '%f' % Rational('-123.456').ceil(+1) #=> "-123.400000"
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* '%f' % Rational('-123.456').ceil(-1) #=> "-120.000000"
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... | ... | |
* Rational(2, 3).truncate #=> 0
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* Rational(-3, 2).truncate #=> -1
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*
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* decimal - 1 2 3 . 4 5 6
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* ^ ^ ^ ^ ^ ^
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* precision -3 -2 -1 0 +1 +2
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* # decimal - 1 2 3 . 4 5 6
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* # ^ ^ ^ ^ ^ ^
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* # precision -3 -2 -1 0 +1 +2
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*
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* '%f' % Rational('-123.456').truncate(+1) #=> "-123.400000"
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* '%f' % Rational('-123.456').truncate(-1) #=> "-120.000000"
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... | ... | |
* Rational(2, 3).round #=> 1
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* Rational(-3, 2).round #=> -2
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*
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* decimal - 1 2 3 . 4 5 6
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* ^ ^ ^ ^ ^ ^
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* precision -3 -2 -1 0 +1 +2
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* # decimal - 1 2 3 . 4 5 6
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* # ^ ^ ^ ^ ^ ^
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* # precision -3 -2 -1 0 +1 +2
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*
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* '%f' % Rational('-123.456').round(+1) #=> "-123.500000"
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* '%f' % Rational('-123.456').round(-1) #=> "-120.000000"
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