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).
libqalculate changes:
- New functions: linearfit(), quadraticfit(), cubicfit(), ramlatency(), parallel()
- Merged inv() and inverse() functions
- Improved and extended parallel operator (|| is interpreted as parallel if units are used)
- Allow nested subfunctions
- Do not stop testing function argument values after first failure
- Solve x^(x^(-a))=b
- Improved simplification: Im(-x)=-Im(x), Re(-x)=-Re(x)
- Handle units in plot data (remove and set as y-axis label)
- Avoid precision loss on output of interval when saving approximate variable
- Unit tests
- Fix pearson() and spearman()
- Fix display of incompletely solved equation with dual approximation in some cases
- Fix genvector() when step size requires evaluation
- Fix a%%-b (interpret %% as mod, not percent)
- Fix asin(x)+bcos(x)=c
- Minor bug fixes and feature improvements
qalc changes:
- Support "--" as end of options
- New --defaults command line option
- Configurable SIGINT (Ctrl+C) action (exit orderly by default)
- Vertical space option (vspace)
- Clear command with Ctrl+L shortcut
- Apply same logic with separate to command, as with "to" at end of expression, when result contains no unit
- Fix "to unicode"
For changes in the GUIs, see the release notes for qalculate-gtk and qalculate-qt
Download the source code here:
libqalculate-3.22.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-3.22.0.tar.gz
qalculate-qt-3.22.0.tar.gz
Download Windows binaries here:
64-bit installer
32-bit installer (use compatibility mode to avoid keyboard input issues)
64-bit zip (unpack and run without further installation; no application data are read or written outside of the unpacked directory)
32-bit zip
The 64-bit binaries can now also be installed using the Windows Package Manager (winget). The new Qt GUI requires Windows 10 or later.
GNU/Linux binaries:
A flatpak package is available at https://flathub.org/apps/details/io.github.Qalculate.
A snap package is available at https://snapcraft.io/qalculate.
64-bit (x86) self-contained binaries (extract and run from anywhere on most GNU/Linux distributions; no translations included)
For more information visit the website at http://qalculate.github.io/.