RPN-25 CE怎么开发一款app

RPN-25 CE is a photo-realistic simulation of Hewlett-Packard’s highly popular scientific calculator HP-25 for the iPhone. Produced from August 1975 through 1978, it was the “Squash” member of the second-generation HP calculators known as the “Woodstock” series. It was also the first programmable calculator costing less than $200. RPN-25 CE simulates the HP-25C version released in July 1976. Its major improvement in that update was “Continuous Memory”. While the simulator works just like the original calculator, a number of carefully designed extensions make it much more powerful. Features: • Photo-realistic look • Programmable (99 steps), subroutines, conditional loops, branching • Insert and delete steps with automatic address correction • 20 registers, “non-volatile”, with unrestricted store/recall arithmetic • Much faster than the original • “Live” register view supporting user interaction (run/stop, single-stepping) • “Live” stack view • Thousands separator (optional) • Selectable pause length • Program listing view with program title and description • Program library view • Store, name and retrieve any number of programs • Sharing: Files, iCloud Drive, e-mail, AirDrop, Dropbox, copy, paste, print • More than 60 programs pre-installed • More than 70 functions not available on the HP-25 • Import and run RPN-32 CE and GO-25 programs • Supports Dark Mode Calculator functions: • Statistics, including clearing statistics registers only • Factorial for arbitrary arguments • Trigonometric functions (degrees, radians, grads) • Polar/rectangular conversions • Inverse, square root, logarithm, exponential, pi • Percentage • Storage arithmetic (store and recall) • Low-battery warning • Sound alerts • ..and many more Details: cuveesoft.ch/rpn25

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