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cosh
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description
Returns the hyperbolic cosine of $arg, defined as (exp(arg) + exp(-arg))/2.
Berechnet den Kosinus Hyperbolikus des Parameters $arg welcher definiert ist als (exp(arg) + exp(-arg))/2.
Devuelve el coseno hiperbólico de $arg, definido como (exp(arg) + exp(-arg))/2.
Retourne le cosinus hyperbolique de $arg, défini comme (exp(arg) + exp(-arg))/2.
Retorna o cosseno hiperbólico de $arg, definido por (exp(arg) + exp(-arg))/2.
declaration of cosh
float cosh ( float $arg )
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