polars math cos for dataframe

Compute the element-wise cosine of a column expression.

Signature

> polars math cos {flags}

Input/output types:

inputoutput
polars_expressionpolars_expression
polars_selectorpolars_expression

Examples

Compute the element-wise cosine of a float column

> [[a]; [0.0] [3.141592653589793]] |
    polars into-df |
    polars select (polars col a | polars math cos) |
    polars collect
╭───┬───────╮
│ # │   a   │
├───┼───────┤
│ 0 │  1.00 │
│ 1 │ -1.00 │
╰───┴───────╯