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decbin> <cos
[edit] Last updated: Fri, 26 Apr 2013

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cosh

(PHP 4 >= 4.1.0, PHP 5)

coshHyperbolic cosine

Description

float cosh ( float $arg )

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

Parameters

arg

The argument to process

Return Values

The hyperbolic cosine of arg

See Also



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