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<cosdecbin>
Last updated: Tue, 19 Sep 2006

cosh

(PHP 4 >= 4.1.0, PHP 5)

cosh -- Hyperbolic cosine

Description

float cosh ( float arg )

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

See also: cos(), acosh(), sin(), and tan().




<cosdecbin>
Last updated: Tue, 19 Sep 2006