How can I get inverse upper triangular matrix without these commands?

2 views (last 30 days)
Palinkas Mark
Palinkas Mark on 22 Oct 2018
Commented: Bruno Luong on 22 Oct 2018
Hi!
How can I get inverse upper triangular matrix without these commands? I don't use
• \
• /
• inv
• pinv
• linsolve
• ^
• mldivide
• mrdivide
• lsqminnorm
So, I can get upper traingular matrix from QR, but how I get it to invert without these commands?

Sign in to answer this question.

Answers (2)

KSSV
KSSV on 22 Oct 2018
Torsten
Torsten on 22 Oct 2018
https://de.mathworks.com/matlabcentral/fileexchange/40722-tridiag-m

Categories

Find more on Linear Algebra in Help Center and File Exchange

Tags

Community Treasure Hunt

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

Start Hunting!