19 Oct
2019
19 Oct
'19
4:04 a.m.
while writing "space travel,"
i could not get the space ship integration
around a planet to keep from either gaining or
losing energy due to floating point errors.
i asked dick hamming if he could help. after
a couple hours, he came back with a formula.
i tried it and it worked perfectly. it was some
weird simple double integration that self
corrected for fp round off. as near as i can
ascertain, the formula was never published
and no one i have asked (including me) has
been able to recreate it.
i look forward to the OCR of the code.
On Fri, Oct 18, 2019 at 1:20 PM SPC <spedraja(a)gmail.com> wrote:
Well, It appears that CHM has published an article about "Space Travel"
code...
https://computerhistory.org/blog/the-earliest-unix-code-an-anniversary-sour…
Cordiales saludos / Kind Regards.
Gracias | Regards - Saludos | Greetings | Freundliche Grüße | Salutations
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Sergio Pedraja
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