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

[cortopar]

Valentin,

I bet it doesn’t feel like it, but even if this thread only had two posts, your original challenge and your answers, it would be tremendously valuable to many of us who observe more than interact.

Your posts over the years are about 98% of the reason for my interest in the 71b.

Thanks for continuing to carry the 71b torch, and thanks for all your posts on other models that have added to my RPN and math knowledge.

All the best,
Bob