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decbin> <cos
[edit] Last updated: Fri, 10 Feb 2012

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cosh

(PHP 4 >= 4.1.0, PHP 5)

coshCosinus hyperbolique

Description

float cosh ( float $arg )

Retourne le cosinus hyperbolique de arg, défini comme (exp(arg) + exp(-arg))/2.

Liste de paramètres

arg

L'argument à traiter

Valeurs de retour

Le cosinus hyperbolique de arg.

Voir aussi



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