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Diffstat (limited to 'Doc/lib')
| -rw-r--r-- | Doc/lib/libmath.tex | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/Doc/lib/libmath.tex b/Doc/lib/libmath.tex index 7f25eba..e52f8f9 100644 --- a/Doc/lib/libmath.tex +++ b/Doc/lib/libmath.tex @@ -79,6 +79,14 @@ argument and return a pair of values, rather than returning their second return value through an `output parameter' (there is no such thing in Python). +For the \function{ceil()}, \function{floor()}, and \function{modf()} +functions, note that \emph{all} floating-point numbers of sufficiently +large magnitude are exact integers. Python floats typically carry no more +than 53 bits of precision (the same as the platform C double type), in +which case any float \var{x} with \code{abs(\var{x}) >= 2**52} +necessarily has no fractional bits. + + Power and logarithmic functions: \begin{funcdesc}{exp}{x} |