A great calculator that can be used on SAT & PSAT/NMSQT exams 12-digit, 2-line display allows for calculations to be displayed as they would be written on paper. Features Direct Algebraic Logic (D.A.L.). Includes 8 temporary memory buttons. Performs 272 functions. Ideal for students studying math and science. Great for pre-algebra, algebra, geometry, trigonometry, statistics, biology and chemistry. Calculates 1 and 2 variable statistics and 6 regression types. Offers 2 modes: normal and stat. Requires 1 LR44 battery, included. Backed by the manufacturer's 1-year limited warranty.