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atof() description: Add information about accepting 'NaN' to produce

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the NaN value.
This commit is contained in:
Fred Drake 1999-02-18 03:49:20 +00:00
parent 594b3d66bd
commit 951eea4733
2 changed files with 12 additions and 9 deletions
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13
Doc/lib/libfuncs.tex
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@ -231,12 +231,13 @@ removed.
\begin{funcdesc}{float}{x}
Convert a string or a number to floating point. If the argument is a
string, it must contain a possibly signed decimal or floating point
number, possibly embedded in whitespace;
this behaves identical to \code{string.atof(\var{x})}.
Otherwise, the argument may be a plain or
long integer or a floating point number, and a floating point number
with the same value (within Python's floating point precision) is
returned.
number, possibly embedded in whitespace, or be \code{'NaN'} (case
insensitive); this behaves identical to
\code{string.atof(\var{x})}. If the string is \code{'NaN'}, the
IEEE ``Not a Number'' value is returned. Otherwise, the argument
may be a plain or long integer or a floating point number, and a
floating point number with the same value (within Python's floating
point precision) is returned.
\end{funcdesc}
\begin{funcdesc}{getattr}{object, name}