The Museum of HP Calculators

HP Forum Archive 17

 Pioneer Puzzle: a different kind of challengeMessage #1 Posted by allen on 9 Mar 2007, 11:44 p.m. ```The Pioneer series was undoubtedly the most diverse series HP ever made.. So, my fellow HP fans, here is a challenge for you: 1. Identify each Pioneer model by only the top row of keys. (picture below) 2. Let S be the Sum of the product of row number and model number for each calculator. For 17bii and 32sii use 17^2 and 32^2. Voyager Example: 3. SQRT(S)+1 is the year my first (and favorite) HP calculators were made. 4. What are my favorite calculators? ``` Edited: 9 Mar 2007, 11:57 p.m.

 Re: Pioneer Puzzle: a different kind of challengeMessage #2 Posted by Karl Schneider on 10 Mar 2007, 1:29 a.m.,in response to message #1 by allen Hi, allen -- I suppose that you also own the complete Pioneer series. Unless I made a mistake, ```27S 21S 22S 14B 32SII 17B 32S 17BII 42S 10B 20S sum = 8647 sqrt(8647) + 1 = 93.98925 Your favorites: HP-48G series ``` -- KS

 Re: Pioneer Puzzle: a different kind of challengeMessage #3 Posted by allen on 12 Mar 2007, 7:45 p.m.,in response to message #2 by Karl Schneider Ahh. Actually my preference is tied with 32sii and 48g (both 1994 vintage). Well done Karl!!! perhaps too easy?? Which ones did you have to pull out and look at?? I personally couldn't do it without a look at the 20S.

 Re: Pioneer Puzzle: a different kind of challengeMessage #4 Posted by Karl Schneider on 13 Mar 2007, 1:27 a.m.,in response to message #3 by allen Quote: Well done Karl!!! perhaps too easy?? Which ones did you have to pull out and look at?? I personally couldn't do it without a look at the 20S. I just pulled out the whole set of Pioneers. A few of the photos I could recognize without checking, but others were tricky. That's really the main thing missing from the MoHPC -- a section dedicated to the Pioneer series. I've contributed some material, but it will be quite an undertaking to develop. -- KS

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