This MATLAB function returns a square diagonal matrix with vector v as the main diagonal.

This MATLAB function returns a square diagonal matrix with the elements of vector v on the main diagonal.

The matrix representation of the second difference operator is a good example of a sparse matrix. It is a tridiagonal matrix with -2s on the diagonal and 1s on the super- and subdiagonal. There …

This MATLAB function returns a column vector containing the eigenvalues of square matrix A.

The upper triangular portion of a matrix includes the main diagonal and all elements above it. The shaded elements in this graphic depict the upper triangular portion of a 6-by-6 matrix.

The Create Diagonal Matrix block populates the diagonal of the M-by-M matrix output with the elements contained in the length-M vector input D.

This MATLAB function extracts the nonzero diagonals from m-by-n matrix A and returns them as the columns in min(m,n)-by-p matrix Bout, where p is the number of nonzero diagonals.

This MATLAB function returns the block diagonal matrix created by aligning the input matrices A1,...,AN along the diagonal of B.

Create a block diagonal matrix. Create a 4-by-4 identity matrix and a 2-by-2 matrix that you want to be repeated along the diagonal.

Equilibrate Matrix for Improved Conditioning Equilibrate a matrix with a large condition number to improve the efficiency and stability of a linear system solution with the iterative solver gmres. …