.BG M
.VE $Header: /usr3/s/current/s/data/.help/RCS/kronecker,v 1.2 83/12/30 23:09:03 rab Exp $
.FN kronecker
.TL
?kronecker: Form Kronecker Product of Matrices
.CS
?kronecker(a, b, fun)
.PP
.AG a,b
matrices. The kronecker product is the matrix with a[1,1]*b in the upper-left
block, a[2,1]*b in the block just below this, and so on. (Presumably you have some use for
this matrix, since you are reading the documentation.)  The kronecker product is
similar to the result of `outer', but permuted and turned into a matrix.
.AG fun
optionally, the operator applied to elements of a and b, rather than the default
multiplication. Thus `?kronecker(a,b,+)' forms kronecker sums.
Default is *.
.RT
a matrix as described, with dimension `nrow(a)*nrow(b)' by `ncol(a)*ncol(b)'.
.KW algebra
.KW array*
.KW multi*
.WR
