TAN function

TAN returns the tangent of a value. The TAN function take arguments in radians where:

radians = (angle * 2 * 3.1416 / 360)


select TAN(3.1415) from dual;

Using TAN function to find the tangent of 30 degrees:


SQL> select TAN(30*2*3.1415926/360) From dual;

TAN(30*2*3.1415926/360)
-----------------------
             .577350257

SQL>