## 1. Extract only diagonal elements from matrix - MATLAB Answers

26 jan 2021 · I can extract all of the permutations (X1, Y1; X1 Y2 ...X2,Y1 ... etc) and then take the diagonal, but I was wondering if there was a simple ...

I have a matrix in one variable and a list of coordinates in another variable. Is there a way to extract only the matching pairs of coordinate from the matrix? I.e. X(1),Y(1); X(2), Y(2)... I ca...

## 2. MATLAB diag - MathWorks

This MATLAB function returns a square diagonal matrix with vector v as the main diagonal ... diag. Create diagonal matrix or get diagonals from symbolic matrices.

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

## 3. How to extract the diagonal of a given matrix? - MATLAB Answers

7 sep 2017 · How can I extract the diagonal of a given matrix with using size? I know we can do it directly with diag.

How can I extract the diagonal of a given matrix with using size? I know we can do it directly with diag.

## 4. diagonals of an uncertain matrix - MATLAB diag - MathWorks

This MATLAB function creates an uncertain matrix MV whose diagonal elements are the elements of the uncertain vector V and whose off-diagonal elements are ...

This MATLAB function creates an uncertain matrix MV whose diagonal elements are the elements of the uncertain vector V and whose off-diagonal elements are 0.

## 5. How can I get the secondary diagonal of a matrix? - MATLAB Answers

27 okt 2020 · I want to take the elements A(1,5), A(2,4), A(3,3), A(4,2), A(5,1), (secondary diagonal), and put those ones into a vector without picking ...

for exaple: A=rand(5,5) diag(A)= main diagonal of matrix A I want to take the elements A(1,5), A(2,4), A(3,3), A(4,2), A(5,1), (secondary diagonal), and put those ones into a vector without pick...

## 6. How can I refer to the diagonals of a matrix? - MATLAB Answers

18 feb 2014 · I'm trying to write a code to refer to the diagonals of a matrix, but I'm having some difficulty doing so. For example, if you have a 5x5 ...

I'm trying to write a code to refer to the diagonals of a matrix, but I'm having some difficulty doing so. For example, if you have a 5x5 matrix, the diagonals will be made up of the following elem...

## 7. How to get diagonal elements of non-square matrix? - MathWorks

26 mrt 2017 · I am working with rectangular matrixes and I want to extract the values that go from the upper left corner to lower right (diagonal).

Hi, guys! I am working with rectangular matrixes and I want to extract the values that go from the upper left corner to lower right (diagonal). I have tried to write some codes, but they don't g...

## 8. Extract main diagonal of input matrix - Simulink - MathWorks

The Extract Diagonal block populates the unoriented output vector with the elements on the main diagonal of the M-by-N input matrix A . Equivalent MATLAB® code ...

The Extract Diagonal block populates the unoriented output vector with the elements on the main diagonal of the M-by-N input matrix A.

## 9. How to extract diagonal elements of multidimensional array - MathWorks

23 mrt 2023 · MATLAB Language Fundamentals Matrices and Arrays Operating on Diagonal Matrices. Find more on Operating on Diagonal Matrices in Help Center ...

If I have a m-order n-dimensional tensor. How should I extract the diagonal elements ? For example % Generate a 3-order 4-dimensional tensor rng('default') A = rand(4,4,4) The diagonal elem...

## 10. Sum of diagonal elements - MATLAB trace - MathWorks

trace extracts the diagonal elements and adds them together with the command sum(diag(A)) . The value of the trace is the same (up to round-off error) as the ...

This MATLAB function calculates the sum of the diagonal elements of matrix A:...

## 11. How to Make a Matrix Diagonal with Matlab? - MathWorks

10 apr 2018 · The code uses eig to compute the eigenvalues (D) and eigenvectors (V). It then checks if A can be diagonalized by verifying that the rank of the ...

I am working on a quantum mechanics problem and would like to get a 4x4 matrix A into diagonal form such that A=UDU^{-1}. Basically I just need to know the values of D and U required in the expres...

## 12. MATLAB spdiags - Sparse Matrices - MathWorks

This MATLAB function extracts the nonzero diagonals from m-by-n matrix A ... spdiags. Extract nonzero diagonals and create sparse band and diagonal matrices.

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.

## 13. How to extract a number of diagonals of a matrix - MATLAB Answers

6 jun 2014 · Direct link to this answer · - Here is a version using sparse matrices and SPDIAGS · Original, dense matrix: · Define diag ID "amplitude":.

Hello all, I have an N-by-N matrix. I want to extract the main diagonal and d diagonals to its right and d diagonals to its left and null all other elements. How can I do that? Thanks

## 14. How do you make the diagonal and certain off-diagonal elements of a ...

14 feb 2023 · How do you make the diagonal and certain... Learn more about matlab, matrix, vectorization MATLAB.

I have a square matrix and would like to make the diagonal elements zero, as well as select elements that are off-diagonal. For the latter, I only want the elements next to (one removed from) the d...

## 15. How to Extract Diagonal Elements of a Matrix in MATLAB? - Linux Hint

In MATLAB the diag() function is used to extract diagonal elements of a matrix. Find details and examples in this tutorial.

## 16. Diagonal of a non-squared martrix - MATLAB Answers - MathWorks

4 mei 2018 · ... make a 1,4 array of the identity matrix and overwrite the original. ... MATLAB Language Fundamentals Matrices and Arrays Operating on Diagonal ...

Hello all, I have a matrix A=zeros(179,716) and I am trying to put the value "1" in its diagonal however it's not a squared matrix so I don;t know how to this! any ideas? thanks a ...

## 17. spdiags (MATLAB Functions)

MATLAB Function Reference, Previous page · Next Page. spdiags. Extract and create sparse band and diagonal matrices. Syntax. B = spdiags(A) [B,d] = spdiags(A) B ...

Extract and create sparse band and diagonal matrices

## 18. How to extract diagonals from a matrix in Matlab and Octave - Okpedia How

20 jul 2022 · Note. If the first argument of the diag () function is a vector, the function creates a diagonal matrix in which the main diagonal is made up of ...

To extract the diagonals of a matrix in Matlab and Octave use the function diag()

## 19. spdiags (MATLAB Functions)

A = spdiags(B,d,m,n) creates an m -by- n sparse matrix by taking the columns of B and placing them along the diagonals specified by d . Note If a column of B is ...

Extract and create sparse band and diagonal matrices

## 20. Determine if matrix is diagonal - MATLAB isdiag - MathWorks

tf = isdiag( A ) returns logical 1 ( true ) if A is a diagonal matrix. Otherwise, it returns logical 0 ( false ). Examples. collapse all ...

This MATLAB function returns logical 1 (true) if A is a diagonal matrix.

## 21. numpy.diag — NumPy v2.0 Manual

Extract a diagonal or construct a diagonal array. See the more detailed documentation for numpy.diagonal if you use this function to extract a diagonal and ...

Extract a diagonal or construct a diagonal array.