RPN-25 CE

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 massively more powerful.

Features:

• Photo-realistic look

• Programmable (99 or 999 steps), subroutines, conditional loops, branching

• Insert and delete steps with automatic address correction

• 15 user-defined function keys of up to 6 characters each, redefinable under program control

• Programmable text messages

• Program Auto-Start option upon loading

• 100 symbolic labels

• 100 visible registers, "non-volatile", with unrestricted store/recall arithmetic

• 100 flags, visible at a glance

• Single-step constants

• Program comments

• Program library with more than 150 programs pre-installed

• More than 270 functions and operations not available on the HP-25

• 100 sounds built-in

• Much faster than the original

• "Live" register view supporting user interaction (run/stop, single-stepping)

• "Live" stack view

• Thousands separator (optional)

• High-contrast display (optional)

• Selectable pause length (up to a day)

• 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

• Import and run RPN-32 CE and GO-25 programs

• Run a large number of HP-41 programs with little or no changes

• Clock display (AM/PM or 24h)

• 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)

• Extended stack operations

• Low-battery warning

• Sound alerts

• ..and many, many more

Details: cuveesoft.ch/rpn25