arcsin_rad¶
Description¶
Computes the arc sine of the input. The result is a float64, specified in radians, in the range [-$\pi$/2, $\pi$/2]
Arguments
input (required) Ratio to find the arc sine 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¶
arcsin_rad(input)
Argument |
Type |
Optional |
Repeatable |
Restrictions |
|---|---|---|---|---|
input |
float64 |
no |
no |
none |
Examples¶
make_col arcsin:arcsin_rad(ratio)
Create a column ‘arcsin’ with the result of the arc sine of column ‘ratio’
The resulting column will be in radians.
Given the below column ratio, arcsin_rad produces the below column arcsin
Ratio should be a floating point number and in the range [-1, 1]. Any inputs outside this range have the result null.
ratio |
arcsin |
|---|---|
-2 |
null |
-1 |
-π / 2 |
-1/2 |
-π / 6 |
0 |
0 |
1/2 |
π / 6 |
1 |
π / 2 |
2 |
null |