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comparison man/lispref/numbers.texi @ 2091:0221e454fe63

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[xemacs-hg @ 2004-05-21 03:27:55 by stephent] typo fix <87smdubgu5.fsf_-_@tleepslib.sk.tsukuba.ac.jp>
author stephent
date Fri, 21 May 2004 03:27:58 +0000
parents e52c5a5c6a7d
children c91543697b09
comparison
equal deleted inserted replaced
2090:e52c5a5c6a7d 2091:0221e454fe63
668 @end defun 668 @end defun
669 669
670 @defun bigfloatp object 670 @defun bigfloatp object
671 @cindex floats 671 @cindex floats
672 The @code{bigfloatp} predicate tests to see whether @var{object} is an 672 The @code{bigfloatp} predicate tests to see whether @var{object} is an
673 integer represented as a fixnum, and returns @code{t} if so, @code{nil} 673 floating point number represented as a bigfloat, and returns @code{t} if
674 otherwise. 674 so, @code{nil} otherwise.
675 @end defun 675 @end defun
676 676
677 677
678 @node Comparison of Numbers 678 @node Comparison of Numbers
679 @section Comparison of Numbers 679 @section Comparison of Numbers
704 will be if it is a number, then the predicate @code{eql} can be used for 704 will be if it is a number, then the predicate @code{eql} can be used for
705 comparison without signaling an error on some expected return values. 705 comparison without signaling an error on some expected return values.
706 Because of canonicalization, @code{eql} can be used to compare a fixnum 706 Because of canonicalization, @code{eql} can be used to compare a fixnum
707 value to something that might be a ratio; if the potential ratio value 707 value to something that might be a ratio; if the potential ratio value
708 is representable as a fixnum, it will be canonicalized to fixnum before 708 is representable as a fixnum, it will be canonicalized to fixnum before
709 comparing. 709 comparing. However, although floats and bigfloats are of different
710 types for the purpose of comparisons via @code{eql}, two bigfloats of
711 different @emph{precision} that are @code{=} will always be @code{eql}.
710 712
711 @example 713 @example
712 (eql 2 (string-match "ere" "there")) 714 (eql 2 (string-match "ere" "there"))
713 @result{} t 715 @result{} t
714 716