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CBM SR-4148R Ship's Position Comparison - SlideRule - 01-29-2022 06:52 PM
An article with attendant algorithm/key-strokes for position comparison from the Journal of Navigation, volume 29, issue 3, 1976, pages 296-298.
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SlideRule
RE: CBM SR-4148R Ship's Position Comparison - Steve Simpkin - 01-29-2022 07:12 PM
A very interesting article! The SR-4148R was my first scientific calculator and the dual memories and summation function really came in handy in this application. The article also mentions using early satellite navigation where it might take several hours for a satellite fix to be received. Thank you.
https://vintage-technology.club/pages/calculators/commodore/co4148r.htm