diff Doc/lib/libfpformat.tex @ 10978:95d782815901 legacy-trunk

Documentation for the fpformat module by Moshe Zadka <mzadka@geocities.com>.
author Fred Drake <fdrake@acm.org>
date Fri, 11 Jun 1999 18:31:00 +0000
parents
children 590272abe69c
line wrap: on
line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Doc/lib/libfpformat.tex	Fri Jun 11 18:31:00 1999 +0000
@@ -0,0 +1,51 @@
+\section{\module{fpformat} ---
+         Floating point conversions}
+
+\declaremodule{standard}{fpformat}
+\sectionauthor{Moshe Zadka}{mzadka@geocities.com}
+\modulesynopsis{General floating point formatting functions.}
+
+
+The \module{fpformat} module defines functions for dealing with
+floating point numbers representations in 100\% pure
+Python. \strong{Note:}  This module is unneeded: everything here could
+be done via the \code{\%} string interpolation operator.
+
+The \module{fpformat} module defines the following functions and an
+exception:
+
+
+\begin{funcdesc}{fix}{x, digs}
+Format \var{x} as \code{[-]ddd.ddd} with \var{digs} digits after the
+point and at least one digit before.
+If \code{\var{digs} <= 0}, the decimal point is suppressed.
+
+\var{x} can be either a number or a string that looks like
+one. \var{digs} is an integer.
+
+Return value is a string.
+\end{funcdesc}
+
+\begin{funcdesc}{sci}{x, digs}
+Format \var{x} as \code{[-]d.dddE[+-]ddd} with \var{digs} digits after the 
+point and exactly one digit before.
+If \code{\var{digs} <= 0}, one digit is kept and the point is suppressed.
+
+\var{x} can be either a real number, or a string that looks like
+one. \var{digs} is an integer.
+
+Return value is a string.
+\end{funcdesc}
+
+\begin{excdesc}{NotANumber}
+Exception raised when a string does not look like a number when the 
+documentation says it should.
+\end{excdesc}
+
+Example:
+
+\begin{verbatim}
+>>> import fpformat
+>>> fpformat.fix(1.23, 1)
+'1.2'
+\end{verbatim}