Returns the Toeplitz matrix
A = makematrix_toeplitz ( x )
a 1-by-n or n-by-1 matrix of doubles, the x input
a n-by-n matrix of doubles, the Toeplitz matrix
Returns the Toeplitz matrix of size n, made with entries from x.
A Toeplitz matrix has constant descending diagonals.
For example, consider n=5 and m=9.
If x=[a b c d e f g h i]
,
then the associated 5-by-5 Toeplitz matrix is
A = [ a b c d e f a b c d g f a b c h g f a b i h g f a ]
See makematrix_hankel for a similar matrix construction.
http://en.wikipedia.org/wiki/Toeplitz_matrix