polars.Series.cos#

Series.cos() → Series[source]#

计算元素级别的余弦值。

示例

>>> import math
>>> s = pl.Series("a", [0.0, math.pi / 2.0, math.pi])
>>> s.cos()
shape: (3,)
Series: 'a' [f64]
[
    1.0
    6.1232e-17
    -1.0
]