Transact-SQL Reference
TAN
Returns the tangent of the input expression.
Syntax
TAN ( float_expression )
Arguments
float_expression
Is an expression of type float or real, interpreted as number of radians.
Return Types
float
Examples
This example returns the tangent of PI()/2.
SELECT TAN(PI()/2)
Here is the result set:
----------------------
1.6331778728383844E+16