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Diffstat (limited to 'doc/lispref/numbers.texi')
| -rw-r--r-- | doc/lispref/numbers.texi | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/doc/lispref/numbers.texi b/doc/lispref/numbers.texi index f018ef4c7c0..9a5bff5a5b2 100644 --- a/doc/lispref/numbers.texi +++ b/doc/lispref/numbers.texi @@ -450,6 +450,10 @@ numbers. It compares numbers by type and numeric value, so that @code{(eql 1.0 1)} returns @code{nil}, but @code{(eql 1.0 1.0)} and @code{(eql 1 1)} both return @code{t}. This can be used to compare large integers as well as small ones. +Floating-point values with the same sign, exponent and fraction are @code{eql}. +This differs from numeric comparison: @code{(eql 0.0 -0.0)} returns +@code{nil} and @code{(eql 0.0e+NaN 0.0e+NaN)} returns @code{t}, +whereas @code{=} does the opposite. @end defun @defun /= number-or-marker1 number-or-marker2 |