Calculator Algorithm or Canon F766S vs TI89  Printable Version + HP Forums (https://archived.hpcalc.org/museumforum) + Forum: HP Museum Forums (https://archived.hpcalc.org/museumforum/forum1.html) + Forum: Old HP Forum Archives (https://archived.hpcalc.org/museumforum/forum2.html) + Thread: Calculator Algorithm or Canon F766S vs TI89 (/thread137778.html) 
Calculator Algorithm or Canon F766S vs TI89  Joerg Woerner  06032008 I just received the new Canon F766S Scientific calculator and was shocked! This little thing (US$ 15) is faster than anything I know. The simple 69! calculates instantly. Mike Sebastian's calculator forensics (inv sin(inv cos(inv tan(tan(cos(sin 9)))))) takes less than 1 second and reports an amazingly precise 14 digits result of 8.9999999817692. Yes, we know this result! The TI89 uses the same 14 digits of "precision" and reports the same numbers. How is this possibly? TI algorithm in Canon calculators? Shareware? Both calcs developed by Inventec? Please advise...
Regards, Re: Calculator Algorithm or Canon F766S vs TI89  hpnut  06032008 Quote:
my HP 48G also calculates 69! instantly. what else is shocking about this Canon?
Re: Calculator Algorithm or Canon F766S vs TI89  Chris Dean  06042008 My new HP10s gives 9.000000002 after a slight delay.
Re: Calculator Algorithm or Canon F766S vs TI89  Karl Schneider  06042008 Quote: I can discern a slight delay on the HP48G between entering "FACT" and seeing the result. Perhaps Joerg really means "instantly". My 1993 TI82 is just about that fast on that calculation, but the HP15C is faster than either of 'em for me, because factorial is only two keystrokes away. A better timing test is needed, but it would not surprise me for a modern nonsolar calculator to be quite fast at computations. Welldesigned and intuitive for a technical professional to use? Now, that would surprise me!
 KS
Re: Calculator Algorithm or Canon F766S vs TI89  Joerg Woerner  06042008 1) Instantly translates to "I / my eyes and brain" don't recognize any delay. The Canon F766S is a solar based calculator with a 3V lithium support battery. 2) What else is shocking? Well, it is just a nice calculator:  The display is the best I ever saw. The characters are large and have a perfect, adjustable contrast.  It features in HEX,OCT and BIN mode e.g. XNOR  It has 38 formulas programmed, e.g. E=Q/(4*PI*epsilon*r*r) and it requests the values with a prompting menue.  It displays the "i" in complex calculations  It has a very nice equation solver  Gene W.: Six regression models: lin, log, exp, pwr, inv, quad  Some goodies like 17 memories, LCM and GCD etc.  And, by the way, the keyboard is very good. Not a solid click but more resistance than the lousy Sharps and average Casio keyboards. If you know the Canon F710 etc  this one is much better! The deal itself is much better than any Casio or Sharp calculator in the $10..$30 price range...
Regards, Re: Calculator Algorithm or Canon F766S vs TI89  Gunnar Degnbol  06042008 Quote:It is possible if they both round the same way (e.g. down), and don't have any bugs, at least for the particular operations on the particular values involved in the calculation. Then they should get the same results when they use the same number of digits.
Re: Calculator Algorithm or Canon F766S vs TI89  mjcohen  06262008 The Canon looks nice. I prefer my Sharp EL506W: $15, over 450 functions, bit fiddling with operators on shifted keys, and base 5 (Pental)!
Also does 2x2 and 3x3 systems, matrices (up to 4x4), stats, and complex calculations.
Re: Calculator Algorithm or Canon F766S vs TI89  Reth  06272008 So what? I get it you found the calculatur of your life. I don't care about that. At least in this forum
