Returns the tangent of expression.

Syntax

TAN ( expression )

Notes

  • TAN takes an angle (expression) and returns the ratio of two sides of a right triangle. The ratio is the length of the side opposite the angle divided by the length of the side adjacent to the angle.
  • expression specifies an angle in radians.
  • expression must evaluate to an approximate numeric data type.
  • To convert degrees to radians, multiply degrees by Pi/180. To convert radians to degrees, multiply radians by 180/Pi.

Example

The following example shows how to use the TAN function:

select tan(45 * pi()/180) 'Tangent of 45 degrees' from 
     MYMATH;
 TANGENT OF 45 DEGREES
--------------------- 
1.000000000000000
 1 record selected

Compatibility

ODBC compatible