Casio FX-115ES

Number of Functions 279 Display   2-Line Digit Yes Natural Textbook Yes Digits 10 + 2 Memory   Store/Recall Yes/Yes Recall & Edit values Yes Number of independent memories 1 Number of constant memories 6 Features   Operating system S - V.P.A.M Protective hard case Yes Clear last entry and clear all Yes Review & edit preview entries Yes Overhead Model Available Yes Fixed decemial capabilities Yes Multi-replay Yes Plastic Keys Yes Mathematics   Metric conversions Yes Scientific notation Yes Parenthesis/Constant Yes/- Pi Yes Xth root Yes Fraction calculations Yes Complex numbers Yes DMS <> DD / P <> R Conversions Yes/Yes Trigonometry   Sin, Cos, Tan, & Inverses Yes Hyperbolic Functions Yes Converts between DEG, RAD, GRAD Yes Statistics   One/two variable Yes/Yes Mean, sum, # elements Yes Standard Deviation Yes Linear Regression Yes Log, In, Inverse Log, Exponential Yes Store and edit data