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:
- Support for solving equations containing if() function
- Support for solving root(a, x)=b (requires rational value for ln(a)/ln(b))
- New functions: powertower() and multiples()
- New units for solar radius, mass, and luminosity
- Ask for the desired interpretation the first time percent addition is used (e.g. 100 + 10% equals 110 or 100.1)
- Use parentheses for exponent using scientific notation (with power of 10)
- Support integer factorization of integers in matrix/vector, and of numerator and denominator in rational number
- Relaxed conditions for (x^a)^b = x^(a × b) and x^a × x^b = x^(a + b) when complex numbers are deactivated (fixes segfaults)
- Fix (ax + n)^2 > 1, where n is even and a is not 1, returning false
- Fix setbits() function
- Fix Number::equals(0, ..., true) when number is infinite (affects replace() function)
- 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-5.1.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-5.1.0.tar.gz
qalculate-qt-5.1.0.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/.