I hate small calculater, with those small rubbery flimsy buttons, I hate the tiny small screens, that go blank for a second when you enter a new number.The canon calculate costs only a few pounds/dollars but is sturdy, can cope with a few bangs and most importantly has a nice feel. The buttons are sturdy with that I know have pressed them feel. It is a solar powered/battery operated and seems to last forever.It doesn't have any of the scientific functions just the simple add, divide, multiply subtract and a useful remove a single number button.So if you are after a simply calculate with a crisp clean display that can cope with being dropped on the floor at a high velocity then this is the calculater for you. Alternatively you could always learn maths again, I think I will stick to the calculator.
Good huntingCharles