Matlab says the matrix is not symmetric
16 views (last 30 days)
Show older comments
Hi!
I compute the following matrix: D = b'Ab, where A is a symmetric covariance matrix. D is high-dimensional and must be symmetric by definition.
But when I apply a functiion "issymmetric" to D, Matlab returns 0 meaning that it is not symmetric.
I guess the problem is the way Matlab handles calculations. But how to fix it and make sure that Matlab sees the symmetry of the matrix D?
Thank you in advance!
0 Comments
Accepted Answer
John D'Errico
on 9 Jul 2020
Edited: John D'Errico
on 9 Jul 2020
D = rand(100);
D = (D + D.')/2;
issymmetric(D)
ans =
logical
1
More Answers (0)
See Also
Categories
Find more on Logical 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!