Computer calculators mimic the functions of hand-held ones ... Note that you can either click the buttons with your mouse or use the buttons on your keyboard to accomplish this.

but if you want to graph ‘e’ functions, you will get access to it by pressing the ‘2 nd ’ button, which opens the second group of available buttons on the calculator. One of the most ...

There's also a home, back, and standard On/Off button. There's no ... the road with the addition of new functions. You could even update your own, individual calculator if you're ambitious ...