4-line display; easily scroll through multiple calculations; shows fractions as they are written Offers integer division key, toggle key, simplify and convert fractions to decimals and back again Features previous entry, power, roots, reciprocals, variable statistics and 7 memories Also features user-friendly menus, automatic shutoff, color-coded keys and nonskid rubber feet Includes impact-resistant cover with a quick-reference card; operates on solar and battery power