I remember my father with one of the FX-850P, that layout is just great. I'm have a FX-9850. They launched a similar version to those old ones, clamshell style

I remember my father with one of the FX-850P, that layout is just great. I'm have a FX-9850. They launched a similar version to those old ones, clamshell style [1]. [1] http://www.amazon.com/Casio-fx-9860G-Slim-Graphing-Calculator/dp/B000RHV4BA http://www.amazon.com/Casio-fx-9860G-Slim-Graphing-Calculato...