Oracle SQL - Function TANH function

Introduction

TANH - Returns the hyperbolic tangent of a value.

The hyperbolic trigonometric function takes arguments in radians where,

radians  = (angle * 2 * 3.1416 / 360) 

Using the TANH function to find the hyperbolic tangent of 30 degrees:

Demo

SQL>
SQL> SELECT TANH(30*2*3.1416/360)
  2  FROM dual;--   w ww  . j  ava 2 s . c  o  m

TANH(30*2*3.1416/360)
---------------------
             00000.48

SQL>