Hi all, pretty simple question but I am held back.

Let us consider the case where I have created a NumPy array which is valid.

Consider the example:

[[1,2,3,4],
[2,3,NaN,5],
[NaN,5,2,3]]

And now, let us say that I want to be presented with a certain list that consists of all of the index values of the missing elements. In this case, the missing elements is **[(1,2),(2,0)]** as you can see.

How can I go about doing this?

Appreciate all the help!