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Free42 version 1.5.7
03-03-2016, 05:29 PM
Post: #40
RE: Free42 version 1.5.7
(03-03-2016 05:09 PM)BarryMead Wrote:  
(03-03-2016 12:48 AM)Massimo Gnerucci Wrote:  People wanted the 15c, not because there was a platform ready for it.

I read somewhere on the internet that the HP-15C is THE MOST POPULAR scientific calculator of all time. I have my own theory as to why this it the case. Feel free to disagree with any of these points.

1. The HP-15C has ALL of its primary functions displayed on the keyboard where they are easy to find. (Not buried in menus). Referencing the manual is almost never required.
2. The HP-15C was one of the first, if not the first calculator to handle complex numbers as a data type allowing you to manipulate them like ordinary numbers. (Adding, Subtracting, Trig functions, and Log functions all work on complex numbers)
3. The HP-15C was one of the first calculators to handle matrix operations.
4. With user written programs, the HP-15C could solve almost any type of scientific problem. (Even those that were not already included in the calculator.)
5. The HP-15C has the right mix (sweet spot) of complexity and ease of use.

I believe that for these reasons (and probably more that I didn't think of) the HP-15C became so popular in the realm of scientific calculators.

Sincerely, Barry

Barry, please: the quote is by Jlouis, not me!

Greetings,
    Massimo

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Messages In This Thread
Free42 version 1.5.7 - Gerald H - 02-29-2016, 09:06 AM
RE: Free42 version 1.5.7 - Manolo Sobrino - 02-29-2016, 05:49 PM
RE: Free42 version 1.5.7 - walter b - 02-29-2016, 09:56 PM
RE: Free42 version 1.5.7 - walter b - 02-29-2016, 10:30 PM
RE: Free42 version 1.5.7 - Gerald H - 02-29-2016, 07:04 PM
RE: Free42 version 1.5.7 - Manolo Sobrino - 02-29-2016, 07:35 PM
RE: Free42 version 1.5.7 - emece67 - 03-01-2016, 11:00 AM
RE: Free42 version 1.5.7 - Jlouis - 03-01-2016, 04:33 PM
RE: Free42 version 1.5.7 - emece67 - 03-01-2016, 04:41 PM
RE: Free42 version 1.5.7 - Jlouis - 03-01-2016, 07:07 PM
RE: Free42 version 1.5.7 - rprosperi - 03-01-2016, 09:21 PM
RE: Free42 version 1.5.7 - Gerald H - 03-01-2016, 07:50 PM
RE: Free42 version 1.5.7 - Jlouis - 03-02-2016, 01:01 AM
RE: Free42 version 1.5.7 - rprosperi - 03-02-2016, 02:39 AM
RE: Free42 version 1.5.7 - Jlouis - 03-02-2016, 01:50 PM
RE: Free42 version 1.5.7 - walter b - 03-02-2016, 04:02 PM
RE: Free42 version 1.5.7 - Jlouis - 03-02-2016, 08:42 PM
RE: Free42 version 1.5.7 - Dave Britten - 03-02-2016, 10:30 PM
RE: Free42 version 1.5.7 - Jlouis - 03-02-2016, 11:58 PM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 12:57 AM
RE: Free42 version 1.5.7 - Dave Britten - 03-03-2016, 12:02 AM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 12:20 AM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 01:20 AM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 03:10 AM
RE: Free42 version 1.5.7 - BarryMead - 03-03-2016, 05:09 PM
RE: Free42 version 1.5.7 - Massimo Gnerucci - 03-03-2016 05:29 PM
RE: Free42 version 1.5.7 - BarryMead - 03-03-2016, 05:44 PM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 06:02 PM
RE: Free42 version 1.5.7 - Jlouis - 03-03-2016, 06:32 PM
RE: Free42 version 1.5.7 - Thomas Okken - 03-11-2016, 09:56 AM



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