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{math.cos.hyperbolic.inverse(Float $number)}
{matg.cos.hyperbolic.inverse()}
Returns the inverse hyperbolic cosine of number
, i.e. the value whose hyperbolic cosine is number
.
Returns The inverse hyperbolic cosine of
number
as afloat
.
https://www.php.net/manual/en/function.acosh.php
Last modified: 2021-06-07
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