ATAN
Calculates the arc tangent of the real number returned by the specified expression <expr>.
Syntax
ATAN(<expr>)
| Parameter | Description |
|---|---|
<expr> | Any expression that evaluates to a real number. |
Example
The following example returns the arc tangent of the specified literal value 90.
SELECT
ATAN(90);
Returns: 1.5596856728972892