# I have 32x32 matrix...But I want to make this a 512x512 matrix with the same element as in the 32x32 matrix..and the rest of which would be zero in 512x512 matrix.. how do i do it??

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### Accepted Answer

Stephen23
on 18 Dec 2014

Edited: Stephen23
on 20 Dec 2014

There is no need to waste time or space with loops or even copying the data from one matrix to another. Try this instead:

A = rand(32);

A(512,512) = 0;

The first line creates a matrix of size 32x32, the second line allocates the value zero to the element at position (512,512). Of course there is no such element, so MATLAB enlarges the matrix, and automatically fills all of the missing values with zero.

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### More Answers (1)

Sudharsana Iyengar
on 18 Dec 2014

A=32x32 matrix

B=zeros(512)

for i= 1:32

for j=1:32

B(i,j)=A(i,j)

end

end

try this

##### 3 Comments

Image Analyst
on 20 Dec 2014

Edited: Image Analyst
on 20 Dec 2014

sanik's "Answer" moved here:

Thank you so much...I just now tried this one:

B=zeros(512);

A=32x32;

B(1:32,1:32,:)=A;

and yea this is working too. Thanks...

Image Analyst
on 3 Jan 2015

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