'dot' or 'scalar' product of vectors or pairwise columns of matrices.

Usage

Dot(x, y)

Value

A scalar or vector of length the number of columns of x and

y.

Arguments

x

numeric vector or matrix

y

numeric vector or matrix

Author

Hans W. Borchers <hwborchers@googlemail.com>

Details

Returns the 'dot' or 'scalar' product of vectors or columns of matrices.
Two vectors must be of same length, two matrices must be of
the same size.
If x and y are column or row vectors, their dot product
will be computed as if they were simple vectors.