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+ and CLI).
Changes:
- Automatic and dual approximation and fractions mode in qalc
- Do not ask before overwriting temporary variables in qalc
- Add keyboard shortcuts for approximation (Ctrl+E), fraction mode (Ctrl+F), and save variable (Ctrl+R) in qalc
- Add "precalculate expression" argument (default false) to save() function (this also changes the behaviour of ":=")
- Support multiple equivalent custom digits, separated by semicolon (e.g. "0;aA1;bB2;cC3"), and phoneword digit set in base() function
- Always place unit with prefix first (fixes kWh)
- Fix local time zone on Windows
- Fix matrix/vector multiplication with approximate matrix/vector variable
- Fix parsing of expression with multiple degree signs
- Replace equals button with a clickable icon in the upper right corner of the expression entry (qalculate-gtk)
- Optional extra column of customizable keypad buttons (qalculate-gtk)
- Use icons for "Value", "Text", and "Copy" in history view and hide all buttons when keypad is shown simultaneously (qalculate-gtk)
- Add "Exact" menu item to result popup menu when appropriate (qalculate-gtk)
- Fix segfault in unit manager (qalculate-gtk)
- Minor bug fixes and feature improvements
Download the source code here:
libqalculate-3.15.0.tar.gz
Download the source code for the graphical user interface (qalculate-gtk) here:
qalculate-gtk-3.15.0.tar.gz
Download Windows binaries here:
64-bit installer
32-bit installer (use compatibility mode to avoid keyboard input issues)
32-bit zip (unpack and run without further installation; no application data are read or written outside of the unpacked directory)
The 64-bit binaries can now also be installed using the Windows Package Manager (winget).
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/.