how to remove zeroes and reverse that in a matrix

I have considered a matrix with zeros

x=[1 2 3 0

   0 0 0 1]

i removed the zeros and the result is

y=[1 2 3 1]

Is it possible to reverse ie obtain x from y..

Please help

Answer 1

[Walter Roberson]

No, not unless you have additional information about where the zeros go, and about the shape of the target matrix.

[Sharen H]

How should i code ...

[Image Analyst]

Sharen: Here's my array [3 5 6 7 2 4 7 1 5]. Can you tell me where the zeros were that I removed? I want you to put them back in the exact spots I took them out of. Do you know where to put them? Hopefully now you understand.

[Sharen H]

yes yes thank you