Copying non zero matrix to a zeros matrix

Hello Dear Experts,

Consider I have a non zero matrix A of size m x n.

I want to pad it with zeros on all sizes. What is the smartest way to pad it with p zero rows and q zero columns.

Thanks a lot in advance!

Answer 1

[bym]

a = magic(3);

 padarray(a,[2 1])

ans =

     0     0     0     0     0
     0     0     0     0     0
     0     8     1     6     0
     0     3     5     7     0
     0     4     9     2     0
     0     0     0     0     0
     0     0     0     0     0

[Image Analyst]

It's in the Image Processing Toolbox. Type ver on the command line to see if you are so unfortunate that you don't have it.

[Steve]

Thanks you both, just forgot the padding function.

My pleasure to have your answers, dear Experts!