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:
- Add support for display of repeating decimals using overline (vinculum) instead of ellipsis
- Do not allow conversion using "to" in function expression (in edit function dialog)
- Add "-" after unit prefix symbol (k and M excluded), in completion list, to indicate that it must be followed by a unit
- Disable calculate as you type for expression containing export, load, or command function
- Use LANGUAGE environment variable, instead of LANG, on Windows in order to avoid changing regional format settings
- Fix calculate-as-you-type not responding to unit modifier changes
- Fix expression status for multiple "to" expressions without preceding expression (not supported)
- Traditional Chinese translation
- Support all real numbers in binomial(), comb(), and perm() functions (libqalculate)
- Add boolean argument for reversed conversion (to text string) in bin(), oct(), dec(), hex(), and base() (libqalculate)
- Add support for units in limit() (libqalculate)
- Improve simplification and speed in diff() function for high orders (libqalculate)
- Show a warning when it appears as if the user tries to convert part of an expression (libqalculate)
- Improve handling of functions returning text string or value with angle unit, in angle and text arguments (libqalculate)
- Improve handling of random numbers in iterative functions and in function arguments of custom functions (libqalculate)
- Improvements/fixes for currencies and exchange rates (libqalculate)
- Fix integral with infinite limit with unit (libqalculate)
- Fix non-localized data set key properties (when translated version is available) (libqalculate)
- Fix angle conversion for (in)equalities (both sides where converted) (libqalculate)
- Fix default separator in load() and export() functions (libqalculate)
- Fix µ_B name/symbol for Bohr magneton (libqalculate)
- Fix incorrect limit for expression containing tan(x) when value to approach is pi/2 without direction (libqalculate)
- Minor bug fixes and feature enhancements
Download the source code here:
qalculate-qt-5.6.0.tar.gz
Download the source code of libqalculate here:
libqalculate-5.6.0.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 (1809) or later.
GNU/Linux binaries:
A flatpak package (recommended) 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/.