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Add index entry for reference to the math module.

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Fred Drake 1998-01-09 21:30:03 +00:00
parent d327a8dddf
commit aa5dba026a
2 changed files with 14 additions and 14 deletions
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14
Doc/lib/libcmath.tex
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@ -82,10 +82,10 @@ The mathematical constant \emph{e}, as a real.
\end{datadesc} \end{datadesc}
Note that the selection of functions is similar, but not identical, to Note that the selection of functions is similar, but not identical, to
that in module \code{math}. The reason for having two modules is, that in module \code{math}\refbimodindex{math}. The reason for having
that some users aren't interested in complex numbers, and perhaps two modules is, that some users aren't interested in complex numbers,
don't even know what they are. They would rather have \code{math.sqrt(-1)} and perhaps don't even know what they are. They would rather have
raise an exception than return a complex number. Also note that the \code{math.sqrt(-1)} raise an exception than return a complex number.
functions defined in \code{cmath} always return a complex number, even Also note that the functions defined in \code{cmath} always return a
if the answer can be expressed as a real number (in which case the complex number, even if the answer can be expressed as a real number
complex number has an imaginary part of zero). (in which case the complex number has an imaginary part of zero).

14
Doc/libcmath.tex
View File

@ -82,10 +82,10 @@ The mathematical constant \emph{e}, as a real.
\end{datadesc} \end{datadesc}
Note that the selection of functions is similar, but not identical, to Note that the selection of functions is similar, but not identical, to
that in module \code{math}. The reason for having two modules is, that in module \code{math}\refbimodindex{math}. The reason for having
that some users aren't interested in complex numbers, and perhaps two modules is, that some users aren't interested in complex numbers,
don't even know what they are. They would rather have \code{math.sqrt(-1)} and perhaps don't even know what they are. They would rather have
raise an exception than return a complex number. Also note that the \code{math.sqrt(-1)} raise an exception than return a complex number.
functions defined in \code{cmath} always return a complex number, even Also note that the functions defined in \code{cmath} always return a
if the answer can be expressed as a real number (in which case the complex number, even if the answer can be expressed as a real number
complex number has an imaginary part of zero). (in which case the complex number has an imaginary part of zero).