[math-fun] best tilt angle for solar panel

To be clear, I regard this problem as simply a cute calculus puzzle. It seems to be a pretty good exercise in calculus. I think it can be solved in more-or-less closed form, although I have not fully done so at present. -- Warren D. Smith http://RangeVoting.org <-- add your endorsement (by clicking "endorse" as 1st step)