TANH function

TANH returns the hyperbolic tangent of a value. It takes arguments in radians where,

radians = (angle * 2 * 3.1416 / 360)

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


SQL> SELECT TANH(30*2*3.1416/360) FROM dual;

TANH(30*2*3.1416/360)
---------------------
            .48047372

SQL>