9 Memories, 79steps Formular memory, Replay and Answer function, Fractions, Trigonometrics and Inverse trigonometrics, Hyperbolic and Inverse hyperbolic, Sexagesimal calculations, Permutation and Combination, Base-n calculations, Logarithms and exponent, Roots and powers, Coordinate transformation, ENG conversion, Complex number, Integration, Equation solving, Statistical and Regression, with protective case