ACOS in JS

Description

Function that returns the arccosine of a specified number (JavaScript ACOS function Documentation).

Sample Source Pattern

Syntax

Math.acos( expression )

Arguments

expression: Numeric expression, where expression is in$[-1,1]$.

Return Type

Numeric expression between 0 and π. If the numeric expression sent by parameter is out of the range of the arccosine in radians $[-1, 1]$, the function returns NaN.

Examples

Query

CREATE OR REPLACE FUNCTION compute_acos(a double)
  RETURNS double
  LANGUAGE JAVASCRIPT
AS
$$
  return Math.acos(A);
$$
;
SELECT COMPUTE_ACOS(-1);

Result

COMPUTE_ACOS(-1)|
---------------+
    3.141592654|