arccos_deg¶
Description¶
Computes the arc cosine of the input. The result is a float64, specified in degrees, in the range [0, 180]
Arguments
- input (required) Ratio to find the arc cosine of, float64. Must be in the range [-1, 1], otherwise the function returns null. 
Return type¶
float64
Domain¶
This is a scalar function (calculates a single output value for a single input row.)
Categories¶
Usage¶
arccos_deg(input)
| Argument | Type | Optional | Repeatable | Restrictions | 
|---|---|---|---|---|
| input | float64 | no | no | none | 
Examples¶
make_col arccos:arccos_deg(ratio)
Create a column ‘arccos’ with the result of the arc cosine of column ‘ratio’
The resulting column will be in degrees.
Given the below column ratio, arccos_deg produces the below column arccos
Ratio should be a floating point number and in the range [-1, 1]. Any inputs outside this range have the result null.
| ratio | arccos | 
|---|---|
| -5 | null | 
| -1 | 180 | 
| 0 | 90 | 
| 1/2 | 60 | 
| 1 | 0 | 
| 2 | null |