Nice calculator, functionally more than complete, but the user interface needs some work. As it is now, the user interface gets in the way. Somewhere I once read that someone at Hewlett Packard said, way back in the days of the HP 41, something like (ad lib) "the user interface is the main problem for adding more functionality to calculators". The problem is, of course that that is true. So far I've only found one modern (2001) calculator that makes excellent use of formulae entry combined with a nice interface, the Casio fx-82TL.
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This page was last modified on February 6th, 2009