polars.Series.arccos

Series.arccos() → Series

Compute the element-wise value for the inverse cosine.

Notes

The returned value is in radians. To convert from radians to degrees, call .degrees().

Examples

>>> s = pl.Series("a", [1.0, 0.0, -1.0])
>>> s.arccos()
shape: (3,)
Series: 'a' [f64]
[
    0.0
    1.570796
    3.141593
]