Scalar product : scalar_product * dotprod dot dotP scalar

6.42.7 Scalar product : scalar_product * dotprod dot dotP scalar_Product

The dot command finds the dot product of two vectors.
dotP, dotprod, scalar_product, and scalarProduct are synonyms for dot. The infixed operator * and its prefixed form ’*’ will also find dot products.

dot takes two arguments:
V₁ and V₂, two lists (vectors) of the same size.
dot(V₁,V₂) returns the dot product of V₁ and V₂.

Example.
Input:

dot([1,2,3],[4,3,5])

or:

scalar_product([1,2,3],[4,3,5])

or:

[1,2,3]*[4,3,5]

or:

’*’([1,2,3],[4,3,5])

Output:

Indeed 25=1· 4+2· 3+3·5.

Note that * may be used to find the product of two polynomials represented as list of their coefficients, but to avoid ambiguity, the polynomial lists must be poly1[…].