arctan_rad¶
Description¶
Computes the arc tangent of the input. The result is a float64, specified in degrees, in the range [-$\pi$/2, $\pi$/2]
Arguments
input (required) Ratio to find the arc tangent of, float64.
Return type¶
float64
Domain¶
This is a scalar function (calculates a single output value for a single input row.)
Categories¶
Usage¶
arctan_rad(input)
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
input |
float64 |
no |
no |
none |
Examples¶
make_col arctan:arctan_rad(ratio)
Create a column ‘arctan’ with the result of the arc tangent of column ‘ratio’
The resulting column will be in radians.
Given the below column ratio, arctan_rad produces the below column arctan.
ratio |
arctan |
|---|---|
-∞ |
-π / 2 |
-√3 |
-π / 3 |
-1 |
-π / 4 |
0 |
0 |
1 |
π / 4 |
-√3 |
π / 3 |
∞ |
π / 2 |