Mercurial > cpython-lru_cache-weakref
diff Doc/lib/libmath.tex @ 13314:03aa26819ac2 legacy-trunk
Tim-blessed documentation for math.frexp().
| author | Fred Drake <fdrake@acm.org> |
|---|---|
| date | Mon, 03 Jul 2000 06:38:17 +0000 |
| parents | 8dca55867998 |
| children | 9414d031a2c3 |
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--- a/Doc/lib/libmath.tex Sun Jul 02 23:21:49 2000 +0000 +++ b/Doc/lib/libmath.tex Mon Jul 03 06:38:17 2000 +0000 @@ -64,12 +64,12 @@ \end{funcdesc} \begin{funcdesc}{frexp}{x} -Convert a floating-point number to fractional and integral -components. If \var{x} is zero, returns \code{(0.0, 0)}, otherwise -returns \code{(\var{frac}, \var{exp})} such that \code{\var{frac} * -2**\var{exp}} will equal \var{x}. \var{exp} will be an integer, and -the absolute value of \var{frac} will be in the range [0.5, 1.0) -(\var{frac} will share the sign of \var{x}). +% Blessed by Tim. +Return the mantissa and exponent of \var{x} as the pair +\code{(\var{m}, \var{e})}. \var{m} is a float and \var{e} is an +integer such that \code{\var{x} == \var{m} * 2**\var{e}}. +If \var{x} is zero, returns \code{(0.0, 0)}, otherwise +\code{0.5 <= abs(\var{m}) < 1}. \end{funcdesc} \begin{funcdesc}{hypot}{x, y}
