Simplifies checking of one's work and allows multiple results to be displayed simultaneously. Includes user defined functionality, binary, octal and hexadecimal arithmetic and importation and calculation of external data sets that include curve fits. Business functions: interest, annuity and loan calculations; present value, bond pricing and depreciation; calendar functions. Math functions: trigonometry, statistics, regression analysis, quadratic and cubic equations, prime factorization. Also includes conversion factors, constants and area under curve calculations. Ten memory locations store numbers and text together. More.