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I agree with this:

On Mon, 21 Feb 2005 WSMurdoch@aol.com wrote:

> 3 MB is far more memory than is really necessary for a celestial navigation
> calculator unless you write software like one of Bill Gates's employees.

I like "minimalist" solutions. What I really need is 3 NUMBERS stored
in the memory, not 3MB:-)

I don't mind using paper Almanach.
And for solving nav triangle with the usual sin h formula,
one needs 3 numbers stored in the process.

When doing this with Casio, I have to re-enter the same data
twice. This takes few seconds of course, but entering the data
is a major source of errors.

Question to Bill:

> Here are the memory requirements used in a TI-82 program that I wrote in the
> early 1990's using TI basic.

> To input time and convert to a single unit - 468 bytes
> To calculate a few time dependent constants - 227 bytes
> To input a position - 400 bytes
> To calculate almanac data to +/- 0.01 (2 S.D.) accuracy -
>    Sun - 650 bytes
>    Moon - 1448 bytes

What do you exactly mean by "calculating almanac data"?
Can you explain how you calculate Moon's coordinates
using 1448 bites??

The formula for the Moon that I am find in Meus contains
hundreds of terms!

Alex.

   

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