Casio FX 260 SOLAR II Scientific Calculator. Slide-on Hard Case - 1 Line(s) - 12 Digits - Solar Powered. All-purpose Scientific Calculator offers fraction calculations, trigonometric functions and more. Includes a slide-on hard case and it is solar powered. Tackle math and science formulas with ease using this versatile scientific calculator. The solar-powered design helps ensure that you're always prepared to take on the next problem. 1-line display shows results up to 10 digits and 2 exponents per value. 144 functions include fraction calculations, trigonometric functions and fixed decimal capabilities to take on diverse equations. Packed with over 140 features and calculations. Solar-powered design provides reliable performance. Clear last entry and clear all functions help you quickly erase mistakes. Includes a slide-on hard case for added protection.