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:
- a(i) and a[i] syntax (the latter with support for functions) for element in vector
- Set ans variable to solution(s) of equation (as if solve() function were used)
- New function: factor()
- Use hours or minutes as default unit for conversion to time unit of expression with time format but no units (e.g. "0:00:12 to s")
- Always use four digits for year in date (e.g. "0064-07-18" instead of "64-07-18"), and support input of date using DD-MM-YYYY format
- Fix solving of x^4-4x^3+10x^2-12x+1=0, and similar, in exact mode
- Fix dual/auto approximation when unable to find exact solution to equation
- Fix rounding in 1/# conversion to integer (e.g. "1/2 to 0.99")
- Fix unability to find approximate solutions to some high degree equations (e.g. "x⁴ − 4x³ + 10x² − 12x = −1")
- Fix automatic variable detection in select()
- Fix terminal columns and rows when piping/redirecting input
- Fix ans variables with calculate as you type activated
- Fix compilation without readline
- 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-5.5.0.tar.gz
Download the source code for the graphical user interfaces (qalculate-gtk and qalculate-qt) here:
qalculate-gtk-5.5.0.tar.gz
qalculate-qt-5.5.0.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 64-bit binaries requires Windows 10 (1809) or later. 32-bit binaries (installer and zip), with support for Windows 7, 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/.