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+--- Thread: Polynomial Root Finding on the 12C (/thread-108619.html)
Polynomial Root Finding on the 12C - Les Wright - 02-19-2007
Does anyone recall seeing in recent months an entry or a link to something (maybe from Gerson or Valentin) discussing how one can use the 12c's NPV/IRR computing capabilities and CF registers to find a real root of a polynomial?
I have been wracking my brain trying to figure how it is done but I can seem to trick the HP12Cp into finding the root I want. Keeping getting Error 3 or Error 7.
Any ideas?
Les
Re: Polynomial Root Finding on the 12C - Gerson W. Barbosa - 02-19-2007
Hello Les,
I think you mean Valentin Albillo's HP-12C Serendipitous Solver.
Regards,
Gerson.
Re: Polynomial Root Finding on the 12C - Paul Dale - 02-19-2007
Try Valentin's article:
http://membres.lycos.fr/albillo/calc/pdf/DatafileVA005.pdf
- Pauli
You have mail - Valentin Albillo - 02-19-2007
Best regards from V.
Re: Polynomial Root Finding on the 12C - Les Wright - 02-19-2007
That's the one!
Ingenious, even if you do have to trick it into finding a positive root.
FWIW, the timings on the 12Cp are several times faster than that quoted for the 12C. The cheap kinpo thing is good for something!
Les