Expr.exp

methodView source ↗

def exp() -> Expr

Categories: numeric

Calculate the exponential of the element value.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf = tf.select(td.col("val"), td.col("val").exp().alias("exp"))
>>>
┌──────┬─────────────┐
│ val  ┆ exp         │
│ ---  ┆ ---         │
│ f64  ┆ f64         │
╞══════╪═════════════╡
│ 0.1  ┆ 1.105171    │
│ 6.0  ┆ 403.428793  │
│ 6.0  ┆ 403.428793  │
│ 7.5  ┆ 1808.042414 │
│ null ┆ null        │
└──────┴─────────────┘