Expr.cbrt

methodView source ↗

def cbrt() -> Expr

Categories: numeric

Calculate the cub root of the element value.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf = tf.select(td.col("val"), td.col("val").cbrt().alias("cbrt"))
>>>
┌──────┬──────────┐
│ val  ┆ cbrt     │
│ ---  ┆ ---      │
│ i64  ┆ f64      │
╞══════╪══════════╡
│ 1    ┆ 1.0      │
│ 15   ┆ 2.466212 │
│ 18   ┆ 2.620741 │
│ 60   ┆ 3.914868 │
│ 60   ┆ 3.914868 │
│ 75   ┆ 4.217163 │
│ null ┆ null     │
└──────┴──────────┘