^ Without GSB (Go Subroutine) / RTN (Return from Subroutine) one cannot write subroutines.^ Without LBL (Label) goto commands can reference only absolute program steps.^ Without BSP (backspace) programs can only be edited by overwriting existing steps.The available programming features differentiate between the various HP Voyager series calculator systems. These keystroke programs, in addition to performing any operation normally available on the keyboard, can also make use of conditional and unconditional branching and looping instructions, allowing programs to perform repetitive operations and make decisions. The HP Voyager series calculator are keystroke programmable, meaning that it can remember and later execute sequences of keystrokes to solve particular problems of interest to the user. Hewlett-Packard retained the numerical analyst William Kahan of UC Berkeley, the architect of the IEEE 754 standard for floating-point arithmetic, to design the numerical algorithms implemented by the calculators. HP has (as of 2015) never made another programmer's calculator, but has incorporated the 16C's functions in later calculator models. A number of specialized functions are provided to assist the programmer, including left- and right-shifting, masking, and bitwise logical operations. It can display numbers in hexadecimal, decimal, octal and binary, and convert numbers from one base to another. The HP-16C is a computer programmer's calculator, designed to assist in debugging. The HP-11C is a mid-range scientific programmable calculator. Poor sales led to a very short market life, making it one of the most difficult of the series to find today. Designed to be an introductory calculator, it was still costly compared to the competition, and many looking at an HP would just step up to the better HP-11C. While a useful general purpose RPN calculator, the HP-11C offered twice as much for only a slight increase in price. The 10C was a basic scientific programmable calculator. The HP-10C is the last and lowest-featured calculator in this line, even though its number would suggest an earlier origin. HP-12C – business/financial calculator (1981–present).The HP calculators Voyager series consisted of five models, some of which were manufactured in several variants (with years of production): Nearly identical in appearance, each model provided different capabilities and was aimed at different user markets. All members of this series are programmable, use Reverse Polish Notation, and feature continuous memory. The Hewlett-Packard Voyager series of calculators were introduced by Hewlett-Packard in 1981. Displays the values of X, Y, Z, T register on the screen.0…20 registers ( R0… R9, R.0… R.9) plus RI, X, Y, Z, T, LAST X.Supports almost all the screen dimensions – tested for:.SWIPE keyboard provides large buttons on a small screen mobile phone.In addition to providing the functions of the financial calculator HP 12c, HD 12C has the following new advanced features: cash flow Analysis (cash flow) NPV, IRR.time value of money (loans, savings and leasing).Fully implements the functionality and financial formulas of HP 12c The interface is completely similar to the legendary HP 12C financial calculator. HD 12C Financial calculator is the toughest, most multifunction currently available financial calculators - calculator for Android.
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