Qalculate! is a multi-purpose cross-platform desktop calculator. It is simple to use but provides power and versatility normally reserved for complicated math packages, as well as useful tools for everyday needs (such as currency conversion and percent calculation). Features include a large library of customizable functions, unit calculations and conversion, symbolic calculations (including integrals and equations), arbitrary precision, uncertainty propagation, interval arithmetic, plotting, and a user-friendly interface (Gtk, Qt, and CLI).
Changes:
- Option to continuously display result while editing expression
- Option to specify number of displayed significant digits, instead of using precision
- New functions: tripleProduct(), multilimit()
- Improve decision to automatically convert unchanged quantity with unit
- Improve ability to abort matrix functions
- Add plot() function example, and support expression in y=f(x) format
- Place "approx." on same line as value (instead of as equals sign) in qalc
- Display "aborted" for long aborted result in qalc
- Updated French translation
- Fix case conversion of µ to M and similar
- Fix segfault with very large integer raised by very large integer
- Fix wrong output of converted unit with non-numerical exponent in some cases (e.g. ft^x converted to m without expansion)
- Fix "sqrt(x-1/x)+sqrt(1-1/x)-x=0" when approximation is not exact
- Fix clear using Ctrl+L when input line is not empty
- Minor bug fixes and feature enhancements
For changes in the GUIs, see the release notes for qalculate-gtk and qalculate-qt
Download the source code here:
libqalculate-5.4.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-5.4.0.tar.gz
qalculate-qt-5.4.0.tar.gz
Download Windows binaries here:
64-bit installer (updated 2024-11-27 with workaround for file not replaced during installation)
64-bit zip (unpack and run without further installation; no application data are read or written outside of the unpacked directory)
The binaries can also be installed using the Windows Package Manager (winget). The 64-bit binaries requires Windows 10 or later. 32-bit binaries (installer and zip), with support for Windows 7, are also available but do not include the Qt GUI.
GNU/Linux binaries:
flatpak packages are available at https://flathub.org/apps/details/io.github.Qalculate.qalculate-qt (Qt GUI) and https://flathub.org/apps/details/io.github.Qalculate (GTK GUI).
snap packages are available at https://snapcraft.io/qalculate-qt (Qt GUI) and https://snapcraft.io/qalculate (GTK GUI).
64-bit (x86) self-contained binaries (GTK GUI) (extract and run from anywhere on most GNU/Linux distributions; no translations included)
For more information visit the website at http://qalculate.github.io/.