Matrix calculations on the HP-42S/Free42/DM-42

[Werner]

No you don't?
When you just browse the matrix and EXIT, the stack is not disturbed.
When you enter a new number in the first cell, the previous content is lifted up.
I will be the first to admit that EDIT should've disabled stack lift, as the -> etc. do;
but that is not the case, and it would mess up older programs to change it now.
Cheers, Werner