Casio - CSOFX300ESPLS2 FX-300ESPLS2-S 2nd Edition Scientific Calculator features a sleek design and slide-on hard case for protection. It is perfect for middle school and high school students learning General Math, Trigonometry, Statistics, Algebra I and II, Pre-Algebra, Geometry and Physics. Natural Textbook Display presents fractions, derivatives, integrals, sum and other operations similar to their display in math textbooks. Calculator functions include linear regression, quadratic regression, logarithmic repression, e-exponential regression, ab-exponential regression, power regression and inverse regression. It also transforms a displayed decimal calculation to a fraction or mixed number and converts it back to decimal form. Scroll up on the screen to see and edit previous calculations. Table mode lets you input a function and view the table of values. Calculator is compliant to use on PSAT/NMSQT, SAT, ACT and AP tests.