polars.Expr.dot

Expr.dot(
    other: Expr | str_,
) → Expr

Compute the dot/inner product between two Expressions.

engine:In MemoryStreamingDistributed

Parameters:

other

Expression to compute dot product with.

Examples

>>> df = pl.DataFrame({"a": [1, 3, 5], "b": [2, 4, 6]})
>>> df.select(pl.col("a").dot(pl.col("b")))
shape: (1, 1)
┌─────┐
│ a   │
│ --- │
│ i64 │
╞═════╡
│ 44  │
└─────┘