Datexx Scientific Calculators, DS-991ES-6, Pack Of 6 Calculators

Use this scientific calculator in class or on exams. With more than 400 functions at your disposal, this calculator helps you perform advanced calculations with confidence. 4-line alphanumeric display shows results up to 10+2 digits. Natural textbook display shows formulas and results as they appear in textbooks. Equipped with 410 functions to handle advanced calculations. Last answer memory helps you recall and correct calculations. Equation solving and statistical calculation functions help you solve quadratic problems, find means, variance, standard deviation, probability distribution, regression and more. Approved for use on SAT, ACT and AP exams.