cosh

(PHP 4 >= 4.1.0, PHP 5, PHP 7, PHP 8)

cosh — Hyperbolic cosine

Description

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

Parameters

num

The argument to process

Return Values

The hyperbolic cosine of num

See Also

• cos() - Cosine
• acosh() - Inverse hyperbolic cosine
• sinh() - Hyperbolic sine
• tanh() - Hyperbolic tangent