jrpn16 2.1.20
HP 16C programmer's calculator
6downloads
2this week
FreeFreeware
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About jrpn16
Programmer's calculator that simulates an HP 16C. It simulates the appearance and behavior of the original, including the seven-segment display, and the little blink you get when entering numbers. The 16C's windowing functions are implemented, but can be disabled to allow the display of longer numbers at one time.
Full source is available on Github. There is no advertising of any kind -- this is a hobby project, and a bit of a labor of love.
Do be aware that the 16C is a calculator intended for computer programmers. If you're not familiar with hexadecimal or stack-based RPN calculators, this probably isn't what you're looking for!
License: GPL-3.0-only
Full source is available on Github. There is no advertising of any kind -- this is a hobby project, and a bit of a labor of love.
Do be aware that the 16C is a calculator intended for computer programmers. If you're not familiar with hexadecimal or stack-based RPN calculators, this probably isn't what you're looking for!
License: GPL-3.0-only
| Release info | Update on Jun 02, 2026 |
|---|---|
| Release notes | • Floating point entry fidelity improvements in Grow LCD mode: Issue 141 • 16C int mode: Better handling of leading zeroes on digit entry: Issue 159 • 16C ones-complement mode: Fix handling of -0 for addition/subtraction: Issue 152 • Add option to simulate Voyager stack-lift bug on CHS: Issue 150 • 15C: Persist USER mode • Default to allowing "," keyboard accelerator alias for ".": Issue 147 |
| Listing data | Flathub |
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