tanh

(PHP 4 >= 4.1.0, PHP 5)

tanh — Hyperbolic tangent

Description

float tanh ( float $arg )

Returns the hyperbolic tangent of arg, defined as sinh(arg)/cosh(arg).

Parameters

arg

The argument to process

Return Values

The hyperbolic tangent of arg

See Also

• tan() - Tangent
• atanh() - Inverse hyperbolic tangent
• sinh() - Hyperbolic sine
• cosh() - Hyperbolic cosine