tangent function

The tan function is a trigonometric function. The tan function returns the tangent of an angle specified in radians.

Syntax:

double tan(n)

Semantics:

• n: The argument n is an expression that resolves to a number (an angle expressed in radians).

• return type: double.

  The resultant value is in the range -1 through 1 with the following exceptions:

  • Returns a NULL value in the following cases:

    • n resolves to a NULL value

    • n does not resolve to a number

  • Returns NaN if n resolves to NaN or infinity(positive/negative).

Example 1 - tangent function

SELECT tan(n) FROM Archery

Value of n	Output
0	0.0
radians(90)	1.633123935319537E16
pi()/4	0.9999999999999999