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\chapter{Miscellaneous Services}
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The modules described in this chapter provide miscellaneous services
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that are available in all Python versions. Here's an overview:
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\begin{description}
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\item[math]
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--- Mathematical functions (\code{sin()} etc.).
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\item[whrandom]
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--- Floating point pseudo-random number generator.
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\item[random]
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--- Generate pseudo-random numbers with various common distributions.
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\item[rand]
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--- Integer pseudo-random number generator (obsolete).
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\item[array]
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--- Efficient arrays of uniformly typed numeric values.
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\end{description}
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