Detect number entry on HP-35s?

[mbrethen]

(03-01-2015 04:13 PM)Tugdual Wrote:  My understanding if the goal is that we want to enter an undefined number of values and at some point signal that the table is complete. The expectation is that when the user has entered the last value and is asked for the next one, he would simply press Enter and then a flag should indicate that nothing was entered which means -> end of data entry.
Is that correct?

Yes, all of the examples I've seen were limited to square matrices or vectors. Other than the user specifying a starting register and entering the element values, the program should do the rest.