[Emacs-diffs] Changes to emacs/man/calc.texi,v

[Jay Belanger]

CVSROOT:        /cvsroot/emacs
Module name:    emacs
Changes by:     Jay Belanger <jpb>      07/08/15 15:44:04

Index: calc.texi
===================================================================
RCS file: /cvsroot/emacs/emacs/man/calc.texi,v
retrieving revision 1.107
retrieving revision 1.108
diff -u -b -r1.107 -r1.108
--- calc.texi   14 Aug 2007 15:06:51 -0000      1.107
+++ calc.texi   15 Aug 2007 15:44:04 -0000      1.108
@@ -27443,6 +27443,14 @@
 typing @kbd{u c @key{RET}} (without specifying new units) produces
 @samp{27.7777777778 m/s}.
 
+While many of Calc's conversion factors are exact, some are necessarily
+approximate.  If Calc is in fraction mode (@pxref{Fraction Mode}), then
+unit conversions will try to give exact, rational conversions, but it
+isn't always possible.  Given @samp{55 mph}, typing 
address@hidden c m/s @key{RET}} produces  @samp{15367:625 m/s}, for example, 
+while typing @kbd{u c au/yr @key{RET}} produces 
address@hidden au/yr}.
+
 If the units you request are inconsistent with the original units, the
 number will be converted into your units times whatever ``remainder''
 units are left over.  For example, converting @samp{55 mph} into acres