Question

Column indexing with condition

I have two matrices A = [1, 0, 0; 0, -2, 0; 0, 0, -3]; B =[1, 2, 3; 4, 5, 6; 7, 8, 9]; I need to...

5 months ago | 1 answer | 0

Question

SVD computation using eig function

I'm trying to find the Singular Value Decomposition of a rectangular matrix by calculating the eigenvalues and eigenvectors of a...

5 months ago | 1 answer | 0

Question

Eigenvectors and the null function

I have a matrix D and I want to find eigenvectors using the null-function and known eigenvalues: D = [2 -1; -1 3]; ...

5 months ago | 1 answer | 0

Question

Divide and conquer SVD algorithm

I'm trying to implement Divide and Conquer SVD, but my code is not working. Can somebody help me fix it? Thanks. EDIT: Note t...

6 months ago | 0 answers | 0

Question

Sum of series with a variable

I have the function , where are i-th components of given vectors respectively. I need to implement it Matlab and find the root...

6 months ago | 1 answer | 0

Question

Does there exist a QL decomposition?

I've read about the QR-decomposition and I wonder if there is an algorithm that does the factorization is a lower triangular ma...

7 months ago | 1 answer | 0

Question

Givens rotation QR decomposition

I'm trying to create a function that computes the Givens Rotation QR decomposition, following this pseudo-code. function [...

7 months ago | 1 answer | 0

Question

Plot doesn't show anything

I'm trying to plot the orbit diagram of the logistic map, but the plot doesn't show anything. There are no error messages, so I'...

10 months ago | 1 answer | 0

Question

Computational time of qr, svd and eig?

How does the time for qr depend on the dimensions of the matrix m and n (does it depend on on the type of linear systems: overd...

1 year ago | 1 answer | 0

Question

How does the time for the backslash operator depend on the type of linear systems?

How does the time for the backslash operator depend on the type of linear systems (overdetermined and underdetermined)? Does it...

1 year ago | 0 answers | 0

Question

How to generate random matrices that are rank-deﬁcient by generating their SVD ﬁrst?

How to generate random matrices that are rank-deﬁcient by generating their SVD ﬁrst?

1 year ago | 1 answer | 0