The use of icons on the menu screen improves viewability. Selection of the desired function is quick and easy. Input and display fractions, powers, logarithms, roots, and other mathematical formulas and symbols just as they appear in textbooks. Variables and statistical calculation results stored in memory can be displayed in lists. There’s no need to recall and confirm individual values as with previous models. ClassWiz contains calculation functions that support even advanced mathematical operations, including spreadsheet calculations, 4 × 4 matrix calculations, calculation of simultaneous equations with four unknowns and quartic equations, and advanced statistical distribution calculations.