Pioneer Puzzle: a different kind of challenge

[Allen]

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]

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]

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]

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