diag() command or function gives diagonal elements or creates a diagonal matrix, after reading this MATLAB diagonal matrix topic, you will know the theory and examples.
Syntax:
diag(n)
- n can be a vector or matrix.
Example: To create a 2×2 diagonal matrix having diagonal elements as 1 and 2.
% create a vector n n=[1,2]; diag(n)
Output:
ans = 1 0 0 2
Example: To create a column vector of diagonal elements from the given Matrix.
% create the 3x3 matrix as n=[1,2,3;3,2,1;4,5,1] v=diag(n)
Output:
n =
1 2 3
3 2 1
4 5 1
v =
1
2
1
