acos
function
Applies to: Databricks SQL Databricks Runtime
Returns the inverse cosine (arccosine) of expr
.
Syntax
acos(expr)
Arguments
expr
: A numeric expression.
Returns
A DOUBLE.
If the argument is out of bounds, NaN
is returned.
Examples
> SELECT acos(1);
0.0
> SELECT acos(2);
NaN