## Sunday, February 21, 2016

### Scientific Calculator Keyboard Challenge II

Feeling creative?  Ever dreamed of the perfect calculator?  Here is a chance to design a calculator.  It can cover any part of mathematics you want:

*  Scientific
*  Financial
*  Programming/Graphing
*  Algebraic and/or RPN (Reverse Polish Notation)

Or if you want to go a specialized route, like Calculated Industries, consider:

*  Construction
*  Unit Conversion
*  Gaming
*  Geometry Applications
*  Civil Engineering
*  Physics
*  Astronomy
*  Stock Market
*  Common Every Day Applications

It can be any combination!

Rules:
*  The keyboard must be used, including the arrow keys.  Assume that the calculator will have the necessary screen size.  You have 16 blank keys, of course, you can/should consider using shift and alpha keys.
*  The keyboard has a double-wide Enter key.  RPN and Hewlett Packard fans rejoice!
*  The marked keys must remain.

Have fun!

Eddie

P.S. If you want another design, I had a post where you designed a calculator keyboard using only 25 keys.  The link is here:

http://edspi31415.blogspot.com/2014/05/scientific-calculator-keyboard-challenge.html

This blog is property of Edward Shore - 2016

1. On a slightly different note, regarding the perfect (beautifully laid out) scientific calculator, —in my dreams I would love to see this elegant HP as a scientific calculator:

http://i5.walmartimages.com/dfw/dce07b8c-3b8f/k2-_df3ba2d2-d184-4fbb-8ea1-548447db4fbb.v1.jpg

The two shift keys would serve to put a lot of functions in the limited keyboard space; I would never put it down. . .

/Silicon Valley Regards

1. Yes - two shift keys can put a lot of functions. A key is to not have it look crowded. Color choice is also important. I like how the HP 10bII/ HP 15C handles two shift keys: one shifted function at the top, one at the bottom.

2. I am a final year, mathematic students. I was tumbling around the whole house as the anxiety before the examination is common for me. I got excellent marks on the particular subject due to Casio graphic calculator. I always thank my sister for presenting me this fantastic set. It has all the features which contributed in getting highest marks in my current exam result

3. "Scientific calculator plays a very significant role in making anyone's life easy and comfortable and hence everyone should buy scientific calculator
and solve equations quickly.
Thanks for sharing and keep bringing more."

### HP Prime: Feet/Feet-Inch-Fraction Conversions (compact format)

HP Prime:  Feet/Feet-Inch-Fraction Conversions  (compact format) Introduction The two functions presented on this blog entry are FIFT (...