Function::Mathematical
Acos (arccosine) 
acos(field)
acos(numeric value)
acos(-1)
acos(0.5)
acos(myvalue+yourvalue*theirvalue)
The acos function calculates the arccosine of a numeric value. The result is an angle expressed in radians between 0 and p.
Parameters
Numeric Value between -1 via 0 to +1
Returns/Result
Numeric value.
Numeric value.
Examples
Example 1
acos(0.5)Result: 1.047195755
Example 2
acos(-0.8)Result: 2.49809154
Reference
acos (arccosine)
Type
Trigonometric Function
Purpose
The acos function calculates the arccosine of a numeric value. The result is an angle expressed in radians between 0 and p.
Syntax
acos( NUMERIC VALUE)
Returns
A numeric value.
Usage
The numeric value in a Trigonometric function can be a constant value (as shown below), a variable, a field value or an expression.
The valid range of the input value is -1 to 1
Examples
Returns: 1.047195755
Returns: 2.49809154
