arccos_rad(input: float64) -> float64

Computes the arc cosine of the input. The result is a float64, specified in radians, in the range [0, $\pi$]

Arguments

1. input (required) Ratio to find the arc cosine of, float64. Must be between [-1, 1], otherwise the function returns null.

Domain

This is a scalar function (calculates a single output value for a single input row).

Categories

• Numeric

Examples

make_col arccos:arccos_rad(ratio)

Create a column 'arccos' with the result of the arc cosine of column 'ratio'
The resulting column will be in radians.

Given the below column ratio, arccos_rad 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.