Some of the functionality you will find in the fx-300ES Plus includes:Natural Textbook Display shows expressions and results exactly as they appear in the textbookMulti-Replay function allows you to backtrack step-by-step through calculations allowing the ability to edit expressions and recalculate answersSimplify Fractions & RootsRepeating Decimal DisplayPrime FactorizationGCD/LCMLogarithm of any baseCombinations & PermutationsStatistics & Linear Regression9 Constant Memory locationsAnd much moreHardware FeaturesThe fx-300ES Plus is intuitive and easy to use as you progress through your coursework. It has two-way power, "Solar Plus with Battery Back-up", so you''re always readyLarge DisplayOffers a large, multi-line display that allows for important multi-replay functionality.