Scientific Calculator Keyboard Challenge

[Eddie W. Shore]

Design the keyboard of a scientific calculator and post links to your designs as responses to this blog entry. Rules:

You have only 25 keys to work with. That's it.

Whatever features, applications, special functions, number of modification keys you can fit is up to you. It can be simple, graphing, financial and/or complex.

The example that I attached is a relatively simple scientific calculator design that would be either a solar-powered calculator or an app. Features include linear regression, algebraic and RPN entry modes, and basic scientific functions.


http://edspi31415.blogspot.com/2014/05/s...lenge.html