A GUI calculator closely modeled after Emacs M-x calc. RPN,
arbitrary-precision integers/fractions/floats, with the same dense
keystroke vocabulary.
Pre-built binaries for macOS (Apple Silicon) and Windows (x64) are on the releases page. Linux users build from source (below).
See manual.md for the full keystroke reference. The
short version: type numbers and press RET to push, then operators
(+, -, *, /, ^, etc.) consume from the top of the stack.
U undoes, D redoes, Ctrl+G cancels a long calculation.
$ cmake -B build
$ cmake --build build
Dependencies (GMP, MPFR, wxWidgets) are downloaded and built by
CMake's FetchContent. The executable lands at
build/bin/stackcalc.app (macOS) or build/bin/stackcalc[.exe].
On Linux, where the distro packages those libraries, prefer:
$ cmake -B build -DDEPS=LOCAL
$ cmake --build build
Apt example: apt install libgmp-dev libmpfr-dev libwxgtk3.2-dev.
-DDEPS=LOCAL finds them via the system's wx-config /
pkg-config instead of building everything from scratch. (Caveat:
distro libgmp/libmpfr aren't compiled with -fexceptions, so the
Ctrl+G "cancel a runaway calculation" feature can't unwind through
their stack frames — the result-size cap still works as a backstop.)
The calculator itself is in the public domain (see UNLICENSE). It depends on GMP (LGPL), MPFR (LGPL), and wxWidgets (wxWindows Library Licence — LGPL with a derived-works exception).