Graphic display with graphics functions and adjustable contrast.Named variables, registers and binary flags.Complex numbers (including polar coordinates representation).Matrix operations (including a matrix editor, dot product, cross product and solver for simultaneous linear equations).Numerical integration for calculating definite integrals.Equation solver (root finder) that can solve for any variable in an equation.Probability (including factorial, random numbers and Gamma function).Statistics (including curve fitting and forecasting).All basic scientific functions (including hyperbolic functions).Peripherals: HP 82240A infrared printer.
#Hp 10bii financial calculator energizer battery upgrade
Expandability: Officially no other than IR printing (32 KB memory upgrade and over-clocking hardware hacks are possible).As this calculator is regarded amongst the best ever made in terms of quality, key stroke feel, ease of programming, and daily usability for engineers, in the HP calculator community the 42S has become famous for its high prices in online auctions, up to several times its introduction price, which has created a scarcity for utility end users. Additionally, it features a two-line dot matrix display, which made stack manipulation easier to understand. The 42S, however, has a much smaller form factor than the 41, and features many more built-in functions, such as a matrix editor, complex number support, an equation solver, user-defined menus, and basic graphing capabilities (the 42S can draw graphs only by programs). Since it lacked expandability, and lacked any real I/O ability, both key features of the HP-41 series, it was marketed as an HP-15C replacement. Perhaps the HP-42S was to be released as a replacement for the aging HP-41 series as it is designed to be compatible with all programs written for the HP-41.
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