Approved for use on SAT, ACT and AP exams! For line alphanumeric 10+2 digit display. Natural textbook display. Shows formula and results as they appear in textbooks. 410 functions. 15 digit internal calculations. Last answer memory. Replay and correct. Equation solving. Includes quadratic, cubic, and simultaneous with 2-3 unknowns. Statistical calculations. Includes means, variance, standard deviation, probability distribution, regression, linear, logarithms, exponential, power, inverse and quadratic.