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:
- Improve abortion of slow calculations
- Fix segfault and inconsistent behaviour in calculation of a^n mod b when n is negative
- Add modular exponentiation function, powmod(), with support for calculation of modular inverse
- Do not make any difference between row and column vectors in magnitude(), norm(), and dot() functions
- Fix division and exponentiation of scalar by matrix/vector, e.g. 4./[8 4.5]
- Improve parsing of element-wise operators with comma as decimal separator
- Fix rref() with different units for different elements
- Fix segfault with empty vector in uncertainty calculation
- Fix segfault trying to solve cbrt(x)^(1/3)-x=0
- Fix segfault in handling of vector variable with uncertainty
- Fix segfault in function assignment with equals sign (e.g. F()=...), when an object with the same name already exists
- Fix segfaults in some corner cases
- Fix internal id does not exist error
- Fix erroneous simplification of sin(x)^2*y-cos(x)sin(x)^2y
- Do not try to calculate norm() and magnitude() for matrices
- Fix some memory leaks
- Fix order of argument titles in csum() function
- Fix abbreviation for variable units (varunits) command in information
For changes in the GUIs, see the release notes for qalculate-gtk and qalculate-qt
Download the source code here:
libqalculate-4.6.1.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-4.6.1.tar.gz
qalculate-qt-4.6.1.tar.gz
Download Windows binaries here (updated 2022-05-26 with version number fix):
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:
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/.