Mar 9, 2011 · diag is the normal MATLAB solution (as pointed out by posdef.) Thus. D = diag(vec); gives you a matrix with diagonal elements as needed. Perhaps better in some …

Suppose I have an NxN matrix A, an index vector V consisting of a subset of the numbers 1:N, and a value K, and I want to do this: for i = V A(i,i) = K end Is there a way to do this in one …

May 4, 2013 · I have a matrix K of dimensions n x n. I want to create a new block diagonal matrix M of dimensions N x N, such that it contains d blocks of matrix K as its diagonal. I would have …

Sep 16, 2013 · Diagonal matrix in matlab. Hot Network Questions In Canada's 2025 election, what have either Poilievre or ...

Nov 15, 2016 · I am interested how to create a diagonal matrix from an array of matrices. I created an array of matrices in MATLAB: X<62x62x1000> it consists of 1000 matrices with …

Mar 28, 2013 · You need to modify the entry of A for your function to return anything more than the zero matrix. You could use MATLAB's function diag which creates a diagonal matrix from a …

May 22, 2020 · I would like to create a block diagonal matrix from another matrix. Let's say the H matrix is a 4 by 4 matrix and I want to create a matrix that is 5 by 5 with the upper left part …

Jul 18, 2016 · Keep in mind that you need u to be in the right length of the k diagonal you want, so if the final matrix is n*n, the k's diagonal will have only n-abs(k) elements. For you case: n = 5; …

Aug 12, 2019 · n = 5; % matrix size M = reshape(1:n*n,n,n); % matrix with linear indices indices = diag(M, ii); % indices to diagonal ii However, it is much easier to just compute the right indices …

Nov 28, 2012 · % A is a 15 x 15 matrix, want to zero out {1,2,3,8}th elements on the diagonal d = diag(A); % diagonal elements of A d([4:7 9:15]) = 0; % zero out the elements you want to …