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[Emacs-diffs] /srv/bzr/emacs/trunk r106072: * calc.texi (Basic Operation
From: |
Jay Belanger |
Subject: |
[Emacs-diffs] /srv/bzr/emacs/trunk r106072: * calc.texi (Basic Operations on Units): Discuss temperature |
Date: |
Wed, 12 Oct 2011 21:50:58 -0500 |
User-agent: |
Bazaar (2.3.1) |
------------------------------------------------------------
revno: 106072
committer: Jay Belanger <address@hidden>
branch nick: trunk
timestamp: Wed 2011-10-12 21:50:58 -0500
message:
* calc.texi (Basic Operations on Units): Discuss temperature
conversion (`u t') alongside with other unit conversions ('u c').
modified:
doc/misc/ChangeLog
doc/misc/calc.texi
=== modified file 'doc/misc/ChangeLog'
--- a/doc/misc/ChangeLog 2011-10-12 04:37:25 +0000
+++ b/doc/misc/ChangeLog 2011-10-13 02:50:58 +0000
@@ -1,3 +1,8 @@
+2011-10-13 Jay Belanger <address@hidden>
+
+ * calc.texi (Basic Operations on Units): Discuss temperature
+ conversion (`u t') alongside with other unit conversions ('u c').
+
2011-10-12 Glenn Morris <address@hidden>
* ert.texi: Whitespace trivia to make main menu items line up better.
=== modified file 'doc/misc/calc.texi'
--- a/doc/misc/calc.texi 2011-03-17 02:25:36 +0000
+++ b/doc/misc/calc.texi 2011-10-13 02:50:58 +0000
@@ -27748,6 +27748,19 @@
typing @kbd{u c @key{RET}} (without specifying new units) produces
@samp{27.7777777778 m/s}.
address@hidden u t
address@hidden calc-convert-temperature
address@hidden Temperature conversion
+The @kbd{u c} command treats temperature units (like @samp{degC} and
address@hidden) as relative temperatures. For example, @kbd{u c} converts
address@hidden degC} to @samp{18 degF}: A change of 10 degrees Celsius
+corresponds to a change of 18 degrees Fahrenheit. To convert absolute
+temperatures, you can use the @kbd{u t}
+(@code{calc-convert-temperature}) command. The value on the stack
+must be a simple units expression with units of temperature only.
+This command would convert @samp{10 degC} to @samp{50 degF}, the
+equivalent temperature on the Fahrenheit scale.
+
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
@@ -27818,19 +27831,8 @@
stack into @code{base} units. If @kbd{u s} does not simplify a
units expression as far as you would like, try @kbd{u b}.
-The @kbd{u c} and @kbd{u b} commands treat temperature units (like
address@hidden and @samp{K}) as relative temperatures. For example,
address@hidden c} converts @samp{10 degC} to @samp{18 degF}: A change of 10
-degrees Celsius corresponds to a change of 18 degrees Fahrenheit.
-
address@hidden u t
address@hidden calc-convert-temperature
address@hidden Temperature conversion
-The @kbd{u t} (@code{calc-convert-temperature}) command converts
-absolute temperatures. The value on the stack must be a simple units
-expression with units of temperature only. This command would convert
address@hidden degC} to @samp{50 degF}, the equivalent temperature on the
-Fahrenheit scale.
+Like the @kbd{u c} command, the @kbd{u b} command treats temperature
+units as relative temperatures.
@kindex u r
@pindex calc-remove-units
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