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APPLIES TO: 
NoSQL
Returns the trigonometric arccosine of the specified numeric value. The arccosine is the angle, in radians, whose cosine is the specified numeric expression.
Syntax
ACOS(<numeric_expr>)
Arguments
| Description | |
|---|---|
numeric_expr |
A numeric expression. |
Return types
Returns a numeric expression.
Examples
The following example calculates the arccosine of the specified values using the function.
SELECT VALUE {
arccosine: ACOS(-1)
}
[
{
"arccosine": 3.141592653589793
}
]
Remarks
- This system function doesn't use the index.