Question Marks

Hello,

Having an old calculator, a CASIO 25, and needing to enter a program containing question marks, I'm stuck because I can't find them. I've looked online but found nothing, and I no longer have the manual that came with the calculator. Thanks to anyone who can help me.

Have a good evening.

2 answers

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  1. On my calculator, it's SHIFT + VARS (but it's a recent calculator).