(HP12C) Always a number further !

[Nihotte(lma)]

Always a number further !
This time, I propose here a program for the HP12C to train you to memorize numbers...

I first saw the idea in a French magazine dedicated to pocket calculators.
I think of «l'Ordinateur de poche» #3 published on the end of the year 1981 !
The title of the original article was «Avez-vous une mémoire aussi bonne que votre xxxpoche ?»
The program was written for TI-58 (TI-59) and was published by Denis Alexandre.

In my adaptation, the program runs until you make a mistake in entering one of the numbers from the list expected by the HP12C.
It does not need a lot of storage memories : no number has to be saved for a long time.
Each of them is regenerated at the right time.

This is the program :

Each turn, the calculator adds a new number at the end of the previous list of numbers.
Each time, these are two phases :
- at first, the HP12C displays, one after one, all the numbers of the current list.
- then, the calculator waits for you to successively restore the numbers without errors and in the same order you saw them.
Next, the first phase come back again, with a new last number !
And in the second phase, again, HP12C controls all you bring back.
So, at the beginning, there is only one number to bring back, and then two numbers, and the next turn three numbers, and so on, until you fail.

N.B. : the listing of the program gives a detailed example