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    Re: DIY long-term almanac for calculators
    From: Paul Hirose
    Date: 2018 Jan 18, 11:37 -0800

    On 2018-01-17 12:28, Bruce Cutting wrote:
    > Any chance getting you to share the code  I hve a TI-89 - believe they are
    > code compatible (basic)
    
    If you really want to see how I coded the Umland formulas in the C#
    language I'll provide the source code. But wouldn't it be easier to work
    from the document attached to Tony's original message? That's what I used.
    
    My source code would probably be more awkward for a calculator since it
    converts angles from degrees to radians. The latter is what the computer
    trig functions require.
    
    I'm coding the low accuracy Sun ephemeris from "Astronomical Algorithms"
    by Meeus, and will report on its accuracy.
    

       
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