Plus42 vs GO-29 SciRPN使用状況と統計

Plus42 is an advanced scientific programmable calculator, based on Free42. Free42, in turn, is a complete re-implementation of the HP-42S scientific programmable RPN calculator, which was made from 1988 until 1995 by Hewlett-Packard. Free42 is a complete rewrite and contains no HP code whatsoever. Plus42 builds on Free42 and adds: Algebraic expressions modeled after those used on the HP-27S and HP-17B/19B; attached units and unit conversions modeled after those used on the HP-48/49/50 series; directories for more organized storage of programs and variables; a larger display, with 8 rows and 22 columns (131x64 pixels) by default, which the user may resize at will; time value of money and amortization schedules; and two-dimensional plotting of functions, with ability to zoom and pan, and find integrals and roots from points in the plot.

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GO-29 SciRPN

GO-29 SciRPN closely simulates the venerable HP-29C Programmable Pocket Scientific Calculator from 1977. Virtually indistinguishable from the real item in operation, GO-29 is a powerful yet simple retro calculator. • RPN (Reverse Polish Notation) • 10-digit LED calculator display, 10-99 to 10+99 • Four stack registers with roll down • Thirty storage registers with arithmetic memory operators: ◦ 10 primary registers ◦ 6 statistical registers ◦ 14 indirect registers • Math, trigonometric, polar/rectangular, sexagesimal/decimal, logarithmic, statistical, power and other miscellaneous functions • Programmable, with labels, subroutines, branching, conditionals, indirect addressing, annotated program listing, and memory for 198 program steps • Library of Sample Programs • Fast, slow or single step program execution • Program import via pasteboard or from other Apps • Program export via printer, email, pasteboard or to others Apps • iTunes program File Sharing • Two additional windows with views of: ◦ stack/storage registers ◦ keystroke log ◦ program source code ◦ program documentation • Copy-from and Paste-to the calculator display • Simple Paper Tape annotations