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decbin> <cos
[edit] Last updated: Fri, 30 Nov 2012

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cosh

(PHP 4 >= 4.1.0, PHP 5)

cosh — Cosinus hiperboliczny

Opis

float cosh ( float $arg )

Zwraca cosinus hiperboliczny z liczby arg, definiowany jako (exp(arg) + exp(-arg))/2.

Patrz także: cos(), acosh(), sin() i tan().



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