Question: Prove that in the H = LU factorization of a regular upper Hessen berg matrix, the lower triangular factor L is bidiagonal, as in (1.67).

Prove that in the H = LU factorization of a regular upper Hessen berg matrix, the lower triangular factor L is bidiagonal, as in (1.67).


L= 4 1 12 1 1-2 -1 1 U = d d


L= 4 1 12 1 1-2 -1 1 U = d d u dz uz dn' (1.67)

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