[VA] SRC #012a - Then and Now: Probability

[PeterP]

Hi Valentin,

I was not able to find a solution that can work on a standard HP41 so I worked on a very limited edge case of steps equal to rows minus one, like the example you provided (btw - it was the provision of that example that allowed little ol’ me to engage and learn, perfectly chosen, thank you!)

My code does deliver the correct result for R = 5, but I dont have a good way (especially right now on a plane and my work computer has no simulators installed…) to check if it is correct for R = 30, S=29. (It comes out to 1.311095094 e-13). And given this is such a specific edge case of your wonderful problem I assume posting code and explanation here would not be in your spirit anyway.

However I wanted to thank you for a couple hours of respite from powerpoints with wonderful recreational math and programming and thinking, its been a loon time since I had this pleasure.

And, as always, I learned a lot in the process, which is the most enjoyable part for me.