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:
- Physical constants updated with CODATA 2022 values
- New function: allroots()
- New units: therm, thermie, IUNS calorie, rpm
- Additional names/symbols for turn unit
- Use symbol "cal" for thermochemical (instead of international table) calorie
- Change title and names/symbols of weak mixing angle (prepend "sin2" to theta variants)
- Return exact negative integers in log10()
- More conservative handling of infinity in equations
- Remove n from equation solution if possible using assumptions of x
- Fix input of scientific E-notation using lowercase e in numbers using concise interval notation, in expressions
- Fix "bit width" and "signed integer" arguments in setbits()
- Fix a^(f(x))=a^(b*g(x)) where b=2 or b=3
- Fix auto/dual approximation with "where" expression
- Fix "where" expressions with multiple inequality statements for a single variable, e.g. "where x>0 and x<10"
- Fix crash when a variable name/symbol with more than 20 characters is used in "where" expression
- Fix unnecessary parenthesis, with wrong color for closing bracket, around unit with exponent in HTML output (affects qalculate-qt)
- Fix qalc not exiting after factorization in non-interactive mode
- 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-5.2.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-5.2.0.tar.gz
qalculate-qt-5.2.0.tar.gz
Download Windows binaries here:
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). The new Qt GUI requires Windows 10 or later. 32-bit binaries (installer and zip) are also available but do not include the Qt GUI.
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/.