HP Forum Archive 17

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HP 35s, keyboard buffer, bug, feature or what? Message #1 Posted by Patrick Rendulic on 27 Aug 2007, 11:07 a.m. I just made the following interesting discovery. I used my 35s to add the following numbers: 2 + 3 + 2 + 2 + 1 + 2 + 2 + 1 + 2 + 2 + 0.5 + 1 = 20.5 When doing such an operation, I use my left thumb for keying in the numbers and my right thumb for pushing the "+" key. I can do that really fast without looking at the keyboard. My 32sii gives the corect answer, always, regardless how fast I am. But on the 35s it is pure luck to get the right answer. Here are some answers: 4323.04; 38.5; 4937.04; 20.5; 20.5; 39; 20.5; 57 It seems that there is a problem with the key buffer, or the machine responds too slow. When operating the keys too fast, the "+" operation is not executed. Am I the only one with this problem ?

Re: HP 35s, keyboard buffer, bug, feature or what? Message #2 Posted by chris Dean on 27 Aug 2007, 11:17 a.m., in response to message #1 by Patrick Rendulic I had no problem with this. I repeated the calculation three times and constantly got the correct answer.

Re: HP 35s, keyboard buffer, bug, feature or what? Message #3 Posted by Thomas Radtke on 27 Aug 2007, 11:57 a.m., in response to message #1 by Patrick Rendulic Quote: It seems that there is a problem with the key buffer, or the machine responds too slow. When operating the keys too fast, the "+" operation is not executed. Am I the only one with this problem ? Nope. Pressing and releasing the binary operator keys real fast results in missed strokes. The numeric keys don't seem to have that problem. I noticed this some days ago. However, that was just a test, the speed necessary to miss the operator is beyond what I actually use.

Re: HP 35s, keyboard buffer, bug, feature or what? Message #4 Posted by Bruce Bergman on 27 Aug 2007, 12:16 p.m., in response to message #1 by Patrick Rendulic I tried that sequence on my 35s (and a 17bii+ I had nearby) with no problems other than the occasional fat-fingering it on my part. I did the run several times so that I could get it pretty fast, and even after multiple attempts, I got the correct result. Are you REALLY REALLY REALLY fast?? :-) Just too fast for any modern calc? thanks, bruce

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