How to Make a Matrix Diagonal with Matlab?
14 views (last 30 days)
Show older comments
I am working on a quantum mechanics problem and would like to get a 4x4 matrix A into diagonal form such that A=UDU^{-1}. Basically I just need to know the values of D and U required in the expression to make A a diagonal matrix (where D is diagonal) as I can then use it to do an explicit calculation for a matrix exponential. As it is the matrix is not diagonal, so I cannot use the explicit expression for the matrix exponential. Is there a code with Matlab that can calculate D and U simply?
The matrix is 4 x 4 and has elements
1 0 0 1
0 -1 1 0
0 1 -1 0
1 0 0 1
0 Comments
Answers (1)
Roger Stafford
on 10 Apr 2018
Edited: Roger Stafford
on 10 Apr 2018
Call on Matlab's 'svd' function. Read about it at:
https://www.mathworks.com/help/matlab/ref/svd.html
or possible you need the 'eig' function at:
https://www.mathworks.com/help/matlab/ref/eig.html
0 Comments
See Also
Categories
Find more on Operating on Diagonal Matrices in Help Center and File Exchange
Products
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!