[VA] Short & Sweet Math Challenges #23: "May the 4th Be With You !" Special

[J-F Garnier]

Let's start with the easy part:

(05-04-2018 09:39 PM)Valentin Albillo Wrote:  Step the Fourth
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Write a program which accepts a positive integer N from the user and outputs both the number and its square for every value from N down to 0, both included, one pair per line.
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it must use no variables at all and no PEEK/POKE either

The challenge here is to use no variables (otherwise it's trivial).

Re-using a previous idea, here is my 41-byte solution:

10 DISP VAL(DISP$);RES*RES
20 DISP SQRT(RES)-1;RES*RES @ IF RES THEN 20

To use it, type the number N, DON'T press ENTER but RUN.

J-F