This is my new acquisition:
TI88

09222012, 01:38 PM
This is my new acquisition:
09222012, 03:09 PM
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. :(
09222012, 03:20 PM
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.
09222012, 03:37 PM
It's a real pity. The machine seems very capable.
09222012, 04:57 PM
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 :)
09222012, 06:01 PM
Quote: My TI66 gives the answer 41.99999995 LOL ;)
09222012, 06:11 PM
Close enough... regarding to the 'unknown' question. 8^D
09222012, 06:25 PM
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.
09222012, 06:25 PM
I shudder to think how much this cost!!? Edited: 27 Sept 2012, 10:57 a.m. after one or more responses were posted
09222012, 06:29 PM
I actually didn't think at the time to reveal the internal 'guard' digits.  Meaning that the 5 is rounded up :D
09222012, 07:42 PM
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
09232012, 05:14 AM
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.
09242012, 09:13 PM
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.
09242012, 10:07 PM
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 ) )
09262012, 08:36 PM
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 
« Next Oldest  Next Newest »
