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, interval arithmetic, plotting, and a user-friendly interface (GTK+ and CLI).
This version primarily includes a large number of stability and reliability improvements, thanks to automatic testing of hundreds of thousands of randomly generated mathematical expressions.
GUI Changes:
- Modified keypad layout.
- RPN stack buttons with icons.
- Use 'linked' widget style where appropriate.
From libqalculate:
- Interpret a character preceded by '' as an unknown variable (same as in quotation marks).
- Do not show fractions with very large numerators or denominators, by default.
- Hectare and decare unit names (in addition to ha/da and hectoare/decaare).
- Always enable units for expressions that ends with "to [unit expression]", "to optimal", or similar.
- Improve appearance of "x m/s" and similar.
- Fix (1x+ay)^b (was not expanded).
- Fix roman() when used for reversed conversion.
- Fix compilation without readline.
Download the source code here:
qalculate-gtk-2.8.1.tar.gz
Download the source code of libqalculate version 2.8.1 here:
libqalculate-2.8.1.tar.gz
Download the installer for Windows here:
qalculate-2.8.1.msi
A snap package is available at https://snapcraft.io/qalculate.
For more information visit the website at http://qalculate.github.io/.