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(Integer Operations): Describe how quotient,

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remainder and modulo round their results.
This commit is contained in:
Kevin Ryde 2003-05-03 22:45:49 +00:00
parent b5aa021523
commit 016668fa78
1 changed files with 13 additions and 8 deletions
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21
doc/ref/scheme-data.texi
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@ -554,13 +554,14 @@ otherwise.
@end deffn
@c begin (texi-doc-string "guile" "quotient")
@deffn {Scheme Procedure} quotient
Return the quotient of the numbers @var{x} and @var{y}.
@end deffn
@c begin (texi-doc-string "guile" "remainder")
@deffn {Scheme Procedure} remainder
Return the remainder of the numbers @var{x} and @var{y}.
@deffn {Scheme Procedure} quotient n d
@deffnx {Scheme Procedure} remainder n d
Return the quotient or remainder from @var{n} divided by @var{d}. The
quotient is rounded towards zero, and the remainder will have the same
sign as @var{n}. In all cases quotient and remainder satisfy
@math{@var{n} = @var{q}*@var{d} + @var{r}}.
@lisp
(remainder 13 4) @result{} 1
(remainder -13 4) @result{} -1
@ -568,11 +569,15 @@ Return the remainder of the numbers @var{x} and @var{y}.
@end deffn
@c begin (texi-doc-string "guile" "modulo")
@deffn {Scheme Procedure} modulo
Return the modulo of the numbers @var{x} and @var{y}.
@deffn {Scheme Procedure} modulo n d
Return the remainder from @var{n} divided by @var{d}, with the same
sign as @var{d}.
@lisp
(modulo 13 4) @result{} 1
(modulo -13 4) @result{} 3
(modulo 13 -4) @result{} -3
(modulo -13 -4) @result{} -1
@end lisp
@end deffn