cosh

(PHP 4 >= 4.1.0, PHP 5)

cosh -- Hyperbolic cosine

Beskrivelse

float cosh ( float arg )

Returns the hyperbolic cosine of arg, defined as (exp(arg) + exp(-arg))/2.

Parameterliste

arg

The argument to process

Returneringsværdier

The hyperbolic cosine of arg

Se også

cos()
acosh()
sinh()
cosh()