acos
The acos function calculates the angle whose cosine is the specified number (the inverse operation of cos).
Syntax
acos( X )
Arguments
- X: A real number in range [-1, 1].
Results
The value of the arc cosine of X. Returns null if X < -1 or X > 1
Examples
This example returns 3.141592653589793:
print num = -1
| extend newField = acos( num )