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{math.cos.hyperbolic(Float $number)}
{matg.cos.hyperbolic()} Returns the hyperbolic cosine of number, defined as (exp(arg) + exp(-arg))/2.
Returns The hyperbolic cosine of
numberas afloat.
https://www.php.net/manual/en/function.cosh.php
Last modified: 2021-06-06
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