The Casio FX-115ESPLUS2 Scientific calculator is the most advanced solar-plus-battery scientific calculator and provides long life and dependability. With it s Natural Textbook Display in addition to advance Statistics Matrix and Conversion functionality the Casio FX-115ESPLUS2 Scientific calculator is the perfect choice for high school and college students. Recommended for students taking General Math Pre-Algebra Algebra I and II Geometry Trigonometry Statistics Calculus Chemistry and Engineering. It has a 16 digit four line LCD display. Determine figures for complex equations with this Casio FX-115ESPLUS2 advanced scientific calculator. This calculator works from solar cell and has a G13/LR44 alkaline battery as a backup in case you are in an area with a low level of light. This calculator provides fraction calculations fraction-decimal conversions metric conversion complex number calculations equation editor hyperbolic functions single/variable statistics. Includes complex number matrix vector solve and equation calculations. Calculator has 40 metric conversions and 40 scientific constants. Comes with slide-on hard case for protection when transporting it to or from school. Color of the calculator is white. Comes with manufacturers one year warranty.