### * calc.texi (Basic Operations on Units): Discuss temperature

`  conversion (`u t') alongside with other unit conversions ('u c').`
parent fd8dea03
 2011-10-13 Jay Belanger * calc.texi (Basic Operations on Units): Discuss temperature conversion (`u t') alongside with other unit conversions ('u c'). 2011-10-12 Glenn Morris * ert.texi: Whitespace trivia to make main menu items line up better. ... ...
 ... ... @@ -27748,6 +27748,19 @@ the above example, entering the units expression @samp{100 km/hr} and typing @kbd{u c @key{RET}} (without specifying new units) produces @samp{27.7777777778 m/s}. @kindex u t @pindex calc-convert-temperature @cindex Temperature conversion The @kbd{u c} command treats temperature units (like @samp{degC} and @samp{K}) as relative temperatures. For example, @kbd{u c} converts @samp{10 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 @@ The @kbd{u b} (@code{calc-base-units}) command is shorthand for 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 @samp{degC} and @samp{K}) as relative temperatures. For example, @kbd{u c} converts @samp{10 degC} to @samp{18 degF}: A change of 10 degrees Celsius corresponds to a change of 18 degrees Fahrenheit. @kindex u t @pindex calc-convert-temperature @cindex 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 @samp{10 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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