Casio fx-115ES Plus 2nd Edition – Advanced Scientific Calculator , 280+ Functions, Natural Textbook Display℠ , Ideal for Math, Science, Engineering & Statistics

NATURAL TEXTBOOK DISPLAY℠ – View fractions, equations, and results exactly as they appear in your textbook, simplifying the interpretation of complex math.OVER 280 FUNCTIONS – Includes advanced capabilities like complex number calculations, linear regression, summation (∑), integration (∫), permutations and combinations, polar-rectangular conversions, and matrix/vector operations.MULTI-REPLAY FUNCTION – Backtrack through your calculations, edit expressions, and recalculate answers step-by-step for easy error checking.EXTENSIVE SCIENTIFIC & MATH FUNCTIONS – Solve simultaneous equations, quadratic and cubic equations, and explore advanced topics and classes like Trigonometry, Pre-Calculus, Calculus I or II, Physics, Statistics, or other college-level courses.SOLAR PLUS WITH BATTERY BACK-UP – Reliable power with energy-efficient Solar Plus technology and battery back-up to keep you working without interruption.