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+ and CLI).
Changes:
- Implement 2019 redefinition of SI base units (primarily affects physical constants and will not take effect until 20 May).
- Uncertainty propagation improvements/fixes.
- Separate use of interval arithmetic, to keep track of precision changes with approximate calculations, from selection of interval calculation algorithm (by default both interval arithmetic and uncertainty propagation using variance formula are now activated).
- uncertainty() function (can specify relative uncertainty of value).
- Improved polynomial gcd.
- Option to ignore system language (locale).
- Option to use two's complement also for hexadecimal numbers.
- Switch to exact decimal fractions (fixed) from decimal fractions mode (and vice versa) when exact mode is toggled.
- Bug fixes and minor feature improvements.
Download the source code here:
libqalculate-3.0.0.tar.gz
Download the source code for the graphical user interface (qalculate-gtk) here:
qalculate-gtk-3.0.0.tar.gz
Download the installer for Windows here:
64-bit version
32-bit version
A snap package is available at https://snapcraft.io/qalculate.
For more information visit the website at http://qalculate.github.io/.