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    Re: Julian Date formula for sun algorithm
    From: Frank Reed
    Date: 2025 Sep 13, 07:12 -0700

    Jim Hickey:
    Thanks for that explanation and also for including the output from MS Copilot. Maybe some NavList members will want to explore the code it provided to see if there are anomalies (??). But if I understand your latest message correctly, you did not yourself notice any issues with the code. Instead the problem was only in the calculation of the example it provided (I didn't check, myself). That wouldn't be too surprising. The last generation of AI chatbots often had trouble with executing calculations --calculations are not very "chatty" and will suffer from casual implementation. It's worth noting, however, that this issue is under active improvement. If you try a puzzle like this in three months, you may well discover that the results are much better.

    Frank Reed

       
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