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:
- Show language menu in preferences on all platforms
- Change "Hide number pad" to "Always show number pad", and add separate number pad when the option is not enabled
- Improve initial value and clear all other fields when edited field is empty, in number bases and floating point conversion dialogs
- Allow unit expressions for insert unit action, for custom shortcuts and buttons
- Set minimum characters to two for all completion with "Limited full completion"
- Support x without backslash for custom function argument condition
- Update parsed expression and calculate-as-you-type result if variable, function, or unit in expression has changed
- Improve support for small displays with low resolution/high scaling
- Update chain mode to match behaviour in Gtk UI
- Update calendar and floating point conversion dialogs after expression calculation
- Delay creation of keypads, completion list, and functions, units, and variables toolbar menus until shown
- Portuguese (pt_PT) translation
- Fixes for overwrite input mode
- Fix unresponsive expression field in some cases after smart parentheses has been applied
- Fix completion with both custom app font and custom expression font set
- Fix input of max value for number argument
- Fix shift + "^°" key press (input °) with German keyboard layout
- Fix memory leaks (libqalculate)
- Fix segfault with recursive (self-referencing) function (libqalculate)
- Fix input of negative exponent in scientific e notation with RPN syntax (libqalculate)
- Fix parsing of 1°2'3" as 1°+2'+3" (libqalculate)
- Improve handling of "where" expressions with inequalities (libqalculate)
- Fix definite integral for 1/sqrt(1-x^2), with limits higher/lower than or equal to -1 and 1 (libqalculate)
- Fix crash with empty vector in plot function, e.g. plot([]) (libqalculate)
- Fix "did you mean..." warning for two implicitly multiplicated functions without space between (e.g. "atan2(a,b)atan2(c,d)") (libqalculate)
- Fix inability to abort randpoisson() with very high rate value (libqalculate)
- Minor bug fixes and feature enhancements
Download the source code here:
qalculate-qt-5.3.0.tar.gz
Download the source code of libqalculate here:
libqalculate-5.3.0.tar.gz
Windows binaries:
64-bit installer
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). Requires Windows 10 or later.
GNU/Linux binaries:
A flatpak package is available at https://flathub.org/apps/details/io.github.Qalculate.qalculate-qt.
A snap package is available at https://snapcraft.io/qalculate-qt.
For more information visit the website at http://qalculate.github.io/.