| \section{Built-in Module \sectcode{math}} |
| |
| \bimodindex{math} |
| \renewcommand{\indexsubitem}{(in module math)} |
| This module is always available. |
| It provides access to the mathematical functions defined by the C |
| standard. |
| They are: |
| \iftexi |
| \begin{funcdesc}{acos}{x} |
| \funcline{asin}{x} |
| \funcline{atan}{x} |
| \funcline{atan2}{x, y} |
| \funcline{ceil}{x} |
| \funcline{cos}{x} |
| \funcline{cosh}{x} |
| \funcline{exp}{x} |
| \funcline{fabs}{x} |
| \funcline{floor}{x} |
| \funcline{fmod}{x, y} |
| \funcline{frexp}{x} |
| \funcline{hypot}{x, y} |
| \funcline{ldexp}{x, y} |
| \funcline{log}{x} |
| \funcline{log10}{x} |
| \funcline{modf}{x} |
| \funcline{pow}{x, y} |
| \funcline{sin}{x} |
| \funcline{sinh}{x} |
| \funcline{sqrt}{x} |
| \funcline{tan}{x} |
| \funcline{tanh}{x} |
| \end{funcdesc} |
| \else |
| \code{acos(\varvars{x})}, |
| \code{asin(\varvars{x})}, |
| \code{atan(\varvars{x})}, |
| \code{atan2(\varvars{x\, y})}, |
| \code{ceil(\varvars{x})}, |
| \code{cos(\varvars{x})}, |
| \code{cosh(\varvars{x})}, |
| \code{exp(\varvars{x})}, |
| \code{fabs(\varvars{x})}, |
| \code{floor(\varvars{x})}, |
| \code{fmod(\varvars{x\, y})}, |
| \code{frexp(\varvars{x})}, |
| \code{ldexp(\varvars{x\, y})}, |
| \code{log(\varvars{x})}, |
| \code{log10(\varvars{x})}, |
| \code{modf(\varvars{x})}, |
| \code{pow(\varvars{x\, y})}, |
| \code{sin(\varvars{x})}, |
| \code{sinh(\varvars{x})}, |
| \code{sqrt(\varvars{x})}, |
| \code{tan(\varvars{x})}, |
| \code{tanh(\varvars{x})}. |
| \fi |
| |
| Note that \code{frexp} and \code{modf} have a different call/return |
| pattern than their C equivalents: they take a single 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). |
| |
| The module also defines two mathematical constants: |
| \iftexi |
| \begin{datadesc}{pi} |
| \dataline{e} |
| \end{datadesc} |
| \else |
| \code{pi} and \code{e}. |
| \fi |