How to expand a matrix with zeros in MATLAB

 To expand a matrix with zeros in MATLAB, you can use the built-in function padarray.

Here's an example:

Suppose you have a 2x2 matrix A: 

 

A = [1 2; 3 4];

And you want to expand it to a 4x4 matrix by adding zeros around it. To do this, you can use the padarray function like this: 

 

B = padarray(A,[1 1],'both')

The first argument of padarray is the matrix 


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