TI88  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: TI88 (/thread231668.html) 
TI88  lgomez  09222012 This is my new acquisition:
Re: TI88  Marcus von Cube, Germany  09222012 Congratulations! Does it have a bouncy keyboard like the one I had in my hands recently?
Sadly, the keyboard of this device is as bad as it can be. :(
Re: TI88  lgomez  09222012 Yes. It remeber me the TI57 LCD owned by a school friend in the early eighties. The keyboard of my TI57 was infinitely better than the keyboard of the TI57 LCD and the TI88.
Re: TI88  Marcus von Cube, Germany  09222012 It's a real pity. The machine seems very capable.
Re: TI88  Gerson W. Barbosa  09222012 Quote:
If you still have your TI57, try this keystroke sequence: CLR 1 +/ + 2 + ( 3 x^{2} x^{2} x^{2} + . 4 5 6 7 8 9 0 lnx ) 1/x + 2nd pi 1/x = INV lnx INV lnxIf the keys are not bouncing then you might get the answer to some important questions :) Re: TI88  mrscorpio  09222012 Quote:
My TI66 gives the answer 41.99999995 LOL ;)
Re: TI88  Luiz C. Vieira (Brazil)  09222012 Close enough... regarding to the 'unknown' question. 8^D
Re: TI88  Gerson W. Barbosa  09222012 My TI57 gives 42.000000022, but because it can display only eight significant digits the result is rounded to 42. The actual 12digit answer is 41.9999999486, which quite agrees with your TI66.
Re: TI88  mrscorpio  09222012 I shudder to think how much this cost!!? Edited: 27 Sept 2012, 10:57 a.m. after one or more responses were posted
Re: TI88  mrscorpio  09222012 I actually didn't think at the time to reveal the internal 'guard' digits.  Meaning that the 5 is rounded up :D
Re: TI88  QUESTIONS YOU DON'T ASK...  Joerg Woerner  09222012 You never ask a girl about her age and you NEVER ask a TI88 owner what she or he paid for it. Rule of thumb: If you have to ask for the price  you can't afford it ;)) Cheers,
Joerg
Re: TI88  Serial Number  lgomez  09232012 Hi Joerg. Can there be an error with the serial number that appears in Datamath? http://www.datamath.org/Sci/Slanted/TI88.htm 002074 ATA wk 32 year 1982 Mine is 002055 ATA wk 33 year 1982
Edited: 23 Sept 2012, 7:57 a.m.
Re: TI88  Eddie W. Shore  09242012 I managed to get 41.999999995 on my TI65.
Bummed to see that the TI88's keyboard is not good. Does it run a complete operator system? Edited: 24 Sept 2012, 9:14 p.m.
Re: TI88  Gerson W. Barbosa  09242012 If you have liked that, you may also like this :) CLR ( 0 INV ln INV ln * ( 1 2 x<>t ( ( 3 * 4 ) +/ INV ln + 5 . 6 7 8 9 ) INV y^{x} x<>t ) ) TI88  VOLUNTEERS NEEDED  Joerg Woerner  09262012 You are right:
Joao Oliveira 4301982 ATA wk 18 year 198 Joerg Woerner 000337 ATA wk 21 year 1982 Gilles Collas 000341 ATA wk 21 year 1982 Viktor T. Toth 001101 ATA wk 32 year 1982 Luis Gómez 002055 ATA wk 33 year 1982 Smithsonian Institute 002074 ATA wk 33 year 1982 Heinz Nixdorf Forum t.b.d. t.b.d. I'm looking for a volunteer to stop by in Paderborn... Regards,
Joerg
