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.

Parameters

arg

The argument to process

Return Values

The hyperbolic cosine of arg

See Also

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


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