Clear Filters
Clear Filters

How to get upper triangluar matrix from lower triangular matrix?

2 views (last 30 days)
If L'L = U'U, where L and U are lower and upper triangular matrices respectively, then how to get U directly from L?
P.S.: I already knew one solution is U = QR (L), but this operation need O(N^3) if L's size is N*N. I am wondering whether there is a O(N^2) operation for solving triangular matrix.

Answers (1)

Veera Kanmani
Veera Kanmani on 20 Apr 2018


Find more on Shifting and Sorting Matrices in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!