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:
- Improved history list efficiency
- Add two's complement input and binary bits to preferences
- Ask for the desired interpretation the first time percent addition is used (e.g. 100 + 10% equals 110 or 100.1)
- Hide expression tooltip (after 300 ms) when input resumes, if delayed expression status is enabled
- Download button in dialog shown when new version is available, on Windows
- Fix AltGr for input of operators on Windows
- Support for solving equations containing if() function (libqalculate)
- Support for solving root(a, x)=b (requires rational value for ln(a)/ln(b)) (libqalculate)
- New functions: powertower() and multiples() (libqalculate)
- New units for solar radius, mass, and luminosity (libqalculate)
- Use parentheses for exponent using scientific notation (with power of 10) (libqalculate)
- Support integer factorization of integers in matrix/vector, and of numerator and denominator in rational number (libqalculate)
- Relaxed conditions for (x^a)^b = x^(a × b) and x^a × x^b = x^(a + b) when complex numbers are deactivated (fixes segfaults) (libqalculate)
- Fix (ax + n)^2 > 1, where n is even and a is not 1, returning false (libqalculate)
- Fix setbits() function (libqalculate)
- Fix Number::equals(0, ..., true) when number is infinite (affects replace() function) (libqalculate)
- Fix a^(f(x))=a^(b*g(x)) where b=2 or b=3 (libqalculate v5.1.1)
- Minor bug fixes and feature enhancements
Download the source code here:
qalculate-qt-5.1.0.tar.gz
Download the source code of libqalculate here:
libqalculate-5.1.1.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 or later.
GNU/Linux binaries:
A flatpak package 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/.