Natural Textbook Display shows formula and results exactly as they appear in the textbook and displays formulas and results simultaneously for 460 built-in functions. Can transform a displayed decimal calculation result to a fraction or mixed number. It can also be converted back to the decimal form. Perform addition, subtraction, multiplication and division. Augment and absolute value calculations. Reciprocal, square and cube calculations. Conjugate complex number calculations. Performs linear regression, quadratic regression, logarithmic regression, e exponential regression, ab exponential regression, power regression and inverse regression. Solve simultaneous linear equations with two unknowns, simultaneous linear equations with three unknowns, quadratic equations and cubic equations. The Matrix mode allows you to perform matrix operations on matrices with up to 3 rows and 3 columns.