1994-01-02 01:22:07 +00:00
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\section{Built-in Module \sectcode{math}}
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\bimodindex{math}
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\renewcommand{\indexsubitem}{(in module math)}
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This module is always available.
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It provides access to the mathematical functions defined by the C
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standard.
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They are:
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\iftexi
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\begin{funcdesc}{acos}{x}
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\funcline{asin}{x}
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\funcline{atan}{x}
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\funcline{atan2}{x, y}
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\funcline{ceil}{x}
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\funcline{cos}{x}
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\funcline{cosh}{x}
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\funcline{exp}{x}
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\funcline{fabs}{x}
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\funcline{floor}{x}
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\funcline{fmod}{x, y}
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\funcline{frexp}{x}
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1994-10-20 22:00:28 +00:00
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\funcline{hypot}{x, y}
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1994-01-02 01:22:07 +00:00
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\funcline{ldexp}{x, y}
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\funcline{log}{x}
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\funcline{log10}{x}
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\funcline{modf}{x}
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\funcline{pow}{x, y}
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\funcline{sin}{x}
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\funcline{sinh}{x}
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\funcline{sqrt}{x}
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\funcline{tan}{x}
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\funcline{tanh}{x}
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\end{funcdesc}
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\else
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\code{acos(\varvars{x})},
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\code{asin(\varvars{x})},
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\code{atan(\varvars{x})},
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\code{atan2(\varvars{x\, y})},
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\code{ceil(\varvars{x})},
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\code{cos(\varvars{x})},
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\code{cosh(\varvars{x})},
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\code{exp(\varvars{x})},
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\code{fabs(\varvars{x})},
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\code{floor(\varvars{x})},
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\code{fmod(\varvars{x\, y})},
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\code{frexp(\varvars{x})},
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\code{ldexp(\varvars{x\, y})},
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\code{log(\varvars{x})},
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\code{log10(\varvars{x})},
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\code{modf(\varvars{x})},
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\code{pow(\varvars{x\, y})},
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\code{sin(\varvars{x})},
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\code{sinh(\varvars{x})},
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\code{sqrt(\varvars{x})},
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\code{tan(\varvars{x})},
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\code{tanh(\varvars{x})}.
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\fi
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Note that \code{frexp} and \code{modf} have a different call/return
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pattern than their C equivalents: they take a single argument and
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return a pair of values, rather than returning their second return
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value through an `output parameter' (there is no such thing in Python).
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The module also defines two mathematical constants:
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\iftexi
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\begin{datadesc}{pi}
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\dataline{e}
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\end{datadesc}
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\else
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\code{pi} and \code{e}.
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\fi
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