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matrix.directproduct - Function



Package utility
Module mathematics
Tool matrix


Direct Matrix Product


Synopsis
directproduct(m1, m2)


Arguments

m1   The first (n x m) matrix (Input)
m2   The second (p x q) matrix (Input)


Returns
an (n.p x m.q) matrix


Description
Returns the Direct Matrix Product (or tensor product, or Kronecker product) of two rectangular matrices of arbitrary shape. It is used in the AIPS++ Measurement Equation, where the (4 x 4) matrix that describes the instrumental effects of an interferometer is the Direct Product of two (2 x 2) antenna `Jones' matrices.

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2006-10-15