How can I invert a big matrix e.g. 1000-by-1000
8 次查看(过去 30 天)
显示 更早的评论
I wanted to invert a big matrix in Matlab, but the values Matlab calculated with inv() were all nonsensical.
Is there another option to invert a matrix that big. I attached the Matrix that I want to invert.
Would be nice if someone has a solution for that problem.
回答(2 个)
Christine Tobler
2021-8-26
When running inv on this matrix, there's a warning:
>> M = inv(current_Fit_Mat);
Warning: Matrix is close to singular or badly scaled. Results may be
inaccurate. RCOND = 1.323498e-26.
So there's the problem, the matrix is ill-conditioned and so computing its inverse is an ill-defined problem.
0 个评论
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Logical 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!