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Casio's new Prizm calculator is to the graphing calculators of my school-days as the iPad is to the slates we scratched on with sticks of chalk. It has a color, 216x384 pixel display, 16MB of ...
A novel calculator interface makes solving tricky sums easy, as users can simply write them onto a screen and then watch the answer appear. The device could easily be incorporated into stylus ...
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