This calculator is an easy-to-use graphing calculator for math and science that lets students graph and compare functions, as well as perform data plotting and analysis. Its flash ROM memory allows students to update and add software applications (Apps). Count on TI calculators at exam time. You can use this TI graphing calculator on the PSAT, SAT, and ACT college entrance exams, IB, and AP tests.Included Apps: Science Tools, StudyCards, Probability Simulation, Vernier EasyData.Details:User-available RAM: 160 KBUser-available flash ROM: 24 KBNumber of batteries: 4 AAA (not included)Includes full reference guidebookManufacturer warranty: 1 YEARFeatures:8-line by 16-character displayAdvanced functions accessed through pull-down display menusReal and complex numbers calculated to 14-digit accuracy and displayed with 10 digits plus a 2-digit exponentGraphs 10 rectangular functions, 6 parametric expressions, 6 polar expressions and 3 recursively-defined sequencesUp to 10 graphing functions defined, saved, graphed and analyzed at one time7 different graph styles for differentiating the look of each graph drawn3 statistical plot definitions for scatter plots, xy-line plots, histograms, regular and modified box-and-whisker plots, and normal probability plots15 probability distribution functions including Normal, Student-t, Chi-square, Binomial and PoissonFull screen interactive editor for solving TVM problems