Pioneer Puzzle: a different kind of challenge « Next Oldest | Next Newest »

 ▼ Allen Senior Member Posts: 562 Threads: 27 Joined: Oct 2006 03-09-2007, 11:44 PM ```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. ▼ Karl Schneider Posting Freak Posts: 1,792 Threads: 62 Joined: Jan 2005 03-10-2007, 01:29 AM 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 ▼ Allen Senior Member Posts: 562 Threads: 27 Joined: Oct 2006 03-12-2007, 07:45 PM 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. ▼ Karl Schneider Posting Freak Posts: 1,792 Threads: 62 Joined: Jan 2005 03-13-2007, 01:27 AM 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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