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import math math.acosh(arg) # Python 2.6+ acosh(PHP 4 >= 4.1.0, PHP 5) acosh — Inverse hyperbolic cosine Description
float acosh
( float $arg
)
Returns the inverse hyperbolic cosine of arg , i.e. the value whose hyperbolic cosine is arg . Parameters
Return ValuesThe inverse hyperbolic cosine of arg Changelog
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