Scientific calculators were invaluable to most of us through high school and college, freeing us from the yoke of using tables to calculate logarithms and trigonometric functions. Once out in the real ...

For most people, calculators are cheap and simple devices used for little more than addition and the odd multiplication job. However, when you get into scientific and graphical calculators, the ...

While we might have started out using our fingers and toes to count, humanity has been busy designing machines to help with calculations for hundreds of years. From early counting devices to modern ...