polars.Expr.cot# Expr.cot() → Self[source]# Compute the element-wise value for the cotangent. Returns: ExprExpression of data type Float64. Examples >>> df = pl.DataFrame({"a": [1.0]}) >>> df.select(pl.col("a").cot().round(2)) shape: (1, 1) ┌──────┐ │ a │ │ --- │ │ f64 │ ╞══════╡ │ 0.64 │ └──────┘