Filtering zeros from nesded array

[rcallisaya]

How could I remove zeros from the nested array M?, the file generated in mathcad 15 is attached.

Thanks.

[Werner_E · Accepted solution]

What you are looking for is twofold!

You don't just want to filter the zeros but you also want to combine all nested subvectors into a single one.

What should happen, if a subvector contains a zero, too?

I guess it should be filtered, too - right?

[Werner_E]

There are many ways to skin a cat. Here is an attempt using a recursive function to deal even with deeply nested arrays:

Mathcad 15 worksheet attached

[rcallisaya]

I really appreciate the  solution, thanks.

[Werner_E]

I had to modify my unravel function because it returns an undesired result in case of one of the inner matrices contains all zeros:

Here is the improved version:

[rcallisaya]

Thank you very much again.