* doc/lispref/numbers.texi (Float Basics, Comparison of Numbers): Improve documentation of ‘=’ vs ‘eq’, ‘eql’ and ‘equal’ when NaNs and signed zeros are involved.
* doc/lispref/numbers.texi (Float Basics, Comparison of Numbers): Improve documentation of ‘=’ vs ‘eq’, ‘eql’ and ‘equal’ when NaNs and signed zeros are involved.