How can I create a triangular matrix based on a vector, in MATLAB?

Question

Let\'s say I\'ve got a vector like this one:

A = [101:105]

Which is really:

[ 101, 102, 103, 104, 105 ]

And I

Answer 1

hankel(A) will get you the first matrix

triu(toeplitz(A)) will get you the second one.

--Loren