MATLAB diagonal matrix

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.

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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.

Output:
ans =

1 0
0 2
Example: To create a column vector of diagonal elements from the given Matrix.
Output:






n =

     1     2     3
     3     2     1
     4     5     1


v =

     1
     2
     1

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