Expr.tan

methodView source ↗

def tan() -> TdExpr

Categories: numeric

Calculate the tangent of the element value.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf.select(td.col("val"), td.col("val").tan().alias("tan"))
>>>
┌─────┬───────────┐
│ val ┆ tan       │
│ --- ┆ ---       │
│ i64 ┆ f64       │
╞═════╪═══════════╡
│ 0   ┆ 0.0       │
│ 30  ┆ -6.405331 │
│ 60  ┆ 0.32004   │
│ 90  ┆ -1.9952   │
└─────┴───────────┘