I have seen both a square pi and a round bread ;)

Cpl Vic Burk is so old, he knows the last digit of pi!

I just got another PI computer board to try. I want to build a digital ESR meter that storess the values for every popular brabd and series if electrolytics . It will displace the capacitance and ESTR, along with a small range from that series to see if they are good.