ACOS()

Available in: DSQL, PSQL

Added in: 2.1

Description

Returns the arc cosine of the argument.

Result type: DOUBLE PRECISION

Syntax

ACOS (number)

• The result is an angle in the range [0, #].
• If the argument is outside the range [-1, 1], NaN is returned.

If the external function ACOS is declared in your database, it will override the internal function. To make the internal function available, DROP or ALTER the external function (UDF).