Thanks to a host of useful features, the Canon LS-82Z is one of the most user-friendly calculators around | The upright LCD helps prevent overhead glare and eye strain, while the large display makes numbers appear clear and crisp even in the dimmest lighting | Combine these features with large keytops and keytop characters, and you'll find that miscalculations are almost impossible | Both solar and battery power ensure that you'll always finish whatever you start, whenever and wherever you are so you don't miss a step | Large, eye-angled, upright display | Floating decimal point system | Extra-compact portable size | Extraction of square root