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:
- Fix handling of Unicode powers for units in denominator, with adaptive parsing enabled (e.g. parse 10m/s² the same as 10m/s^2)
- Fix "+" ignored after "E" in number bases where "E" is a digit
- Fix scientific E notation with sign in argument when function is used without parentheses
- Fix lambertw() for values very close to zero
- Fix a*b^x+cx=d when a and c have different signs, and d is non-zero
- Fix a^x*b^x=c when a and b is negative, and c is positive
- Fix segfaults in some corner cases
- Fix potential issues in handling of leap seconds (e.g. during subtraction of seconds from date)
- var=a syntax for variable assignment with calculated expression
- Replace ounce with fluid ounce during conversion to volume unit
- Solve a^x+b^x+...=c in more cases
- Improve remainder/modulus for numerators with large exponents
- Truncate number in output of parsed expression and end with ellipsis if unable to display all decimals
- Improved floating point calculation and output speed, particularly for simple expressions with very high precision
- New functions: clip(), qFormat(), qError()
- "clear history" command and option to clear (not save) history on exit
- Minor bug fixes and feature enhancements
For changes in the GUIs, see the release notes for qalculate-gtk and qalculate-qt
Download the source code here:
libqalculate-4.3.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-4.3.0.tar.gz
qalculate-qt-4.3.0.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/.