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Incorporate Facundo's suggestions.

This commit is contained in:
Raymond Hettinger 2004-07-09 06:13:12 +00:00
parent 9499658b61
commit 97c9208c6c
1 changed files with 11 additions and 6 deletions
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17
Doc/lib/libdecimal.tex
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@ -15,7 +15,7 @@ Specification.}
\versionadded{2.4}
The decimal \module{module} provides support for decimal floating point
The \module{decimal} module provides support for decimal floating point
arithmetic. It offers several advantages over the \class{float()} datatype:
\begin{itemize}
@ -89,7 +89,8 @@ the decimal module are: \constant{Clamped}, \constant{InvalidOperation},
For each signal there is a flag and a trap enabler. When a signal is
encountered, its flag incremented from zero and, then, if the trap enabler
is set to one, an exception is raised.
is set to one, an exception is raised. Flags are sticky, so the user
needs to reset them before monitoring a calculation.
\begin{seealso}
@ -504,10 +505,14 @@ with the \class{Context} constructor.
The \var{prec} field is a positive integer that sets the precision for
arithmetic operations in the context.
The \var{rounding} option is one of: \constant{ROUND_CEILING},
\constant{ROUND_DOWN}, \constant{ROUND_FLOOR}, \constant{ROUND_HALF_DOWN}
(towards zero), \constant{ROUND_HALF_EVEN}, \constant{ROUND_HALF_UP}, or
\constant{ROUND_UP} (away from zero).
The \var{rounding} option is one of:
\constant{ROUND_CEILING} (towards \constant{Infinity}),
\constant{ROUND_DOWN} (towards zero),
\constant{ROUND_FLOOR} (towards \constant{-Infinity}),
\constant{ROUND_HALF_DOWN} (towards zero),
\constant{ROUND_HALF_EVEN},
\constant{ROUND_HALF_UP} (away from zero), or
\constant{ROUND_UP} (away from zero).
The \var{trap_enablers} and \var{flags} fields are mappings from signals
to either \constant{0} or \constant{1}.