Expr.cosh

methodView source ↗

def cosh() -> TdExpr

Categories: numeric

Calculate the hyperbolic cosine of the element value.

Examples

>>> import tabsdata as td
>>>
>>> tf: td.TableFrame ...
>>>
>>> tf = tf.select(td.col("val"), td.col("val").cosh().alias("cosh"))
>>>
┌──────┬────────────┐
│ val  ┆ cosh       │
│ ---  ┆ ---        │
│ f64  ┆ f64        │
╞══════╪════════════╡
│ 0.1  ┆ 1.005004   │
│ 1.5  ┆ 2.35241    │
│ 1.8  ┆ 3.107473   │
│ 6.0  ┆ 201.715636 │
│ 6.0  ┆ 201.715636 │
│ 7.5  ┆ 904.021484 │
│ null ┆ null       │
└──────┴────────────┘