Dot product
From Fōrmulæ wiki
This page is the answer to the task Dot product in the Rosetta Code.
Description (from Rosetta Code)
Task
Create a function/use an inbuilt function, to compute the dot product, also known as the scalar product of two vectors. If possible, make the vectors of arbitrary length. As an example, compute the dot product of the vectors: If implementing the dot product of two vectors directly:

Program
No programs needed. Dor product is intrinsically supported in Fōrmulæ.