Casio FX-300ESPLS2-S 2nd Edition Scientific Calculator with sleek new design and slide on hard case. With Natural Textbook Display and improved math functionality. This calculator has been designed as the perfect choice for middle school through high school students learning General Math Trigonometry Statistics Algebra I and II Pre-Algebra Geometry Physics. Power Sources: Battery Solar Display Notation: Natural Textbook Scientific Number of Display Digits: 12 Display Characters x Display Lines: 12 x 2.