polars.Expr.arctan

Expr.arctan() → Expr

Compute the element-wise value for the inverse tangent.

Returns:

Expr

Expression of data type Float64.

Examples

>>> df = pl.DataFrame({"a": [1.0]})
>>> df.select(pl.col("a").arctan())
shape: (1, 1)
┌──────────┐
│ a        │
│ ---      │
│ f64      │
╞══════════╡
│ 0.785398 │
└──────────┘