It provides four interfaces: two GUIs, one using GTK (qalculate-gtk) and another using Qt (qalculate-qt), a library for use in other programs (libqalculate), and a CLI program for use in a terminal (qalc).
"In our example of Figure 7, we choose to execute /usr/bin/qalculate-gtk, a calculator. Since the stack of the DOSBox process is non-executable, we cannot directly inject our shellcode on it."
"The Gnome calculator was used to perform these calculations and the results were verified using the Qalculate! calculator and WolframAlpha (15) since spreadsheets are unable to perform these calculations."
^"Qalculate". Free Software Directory. Free Software Foundation. Retrieved 28 April 2021. GPL License Verified by Christiano Anderson Verified on 7 February 2004 Niklas Knutsson Maintainer
^hanna-kn. "Overview". GitHub. Retrieved 28 April 2021.
^hanna-kn. "General problem with 'intelligent guessing' attempts · Issue #115". Qalculate/libqalculate. GitHub. Retrieved 28 April 2021. Also, qalculate-gtk (although I understand that you might prefer the CLI) allows you to see the parsed expression as you type and makes it easier to switch between modes. I agree that an alternative mode along the lines of your suggestions might be beneficial. The default mode should however still strive to allow the user to enter expressions as they appear in ordinary texts (it is still far from perfect in this respect), without the need to read a manual.
^"Software used by the Math Center". Riverbend Community Math Center. South Bend, IN. Retrieved 28 April 2021. Qalculate! is a multi-purpose desktop calculator. It is small and simple to use but with much power and versatility underneath. Features include customizable functions, units, arbitrary precision, and plotting.
^Liang Xu (2020-10-20). "Five commands to use calculator in Linux command line". fatalerrors.org. Retrieved 28 April 2021. Qalculate is a multi-functional cross platform desktop calculator. It's easy to use, but it's powerful. It provides a number of powerful multi-functional mathematical libraries, as well as some practical tools to meet daily needs (such as currency conversion and percentage calculation, etc.). The functions of Qalculate include a large number of customizable function libraries, unit calculation and conversion, symbolic calculation (including integral and equation), arbitrary precision, uncertainty propagation, interval arithmetic, drawing and user-friendly interface (GTK + and CLI).
^Shirish (July 18, 2020). "Qalculate! - The Best Calculator Application in The Entire Universe". It's FOSS. chmod777 Media Tech (OPC) Pvt Ltd. Retrieved 28 April 2021. Features include customizable functions, units, arbitrary precision, plotting, and a graphical interface that uses a one-line fault-tolerant expression entry (although it supports optional traditional buttons).
^Oh, Damien (15 October 2010). "Qalculate is a Powerful Calculator For Linux". Make Tech Easier. Retrieved 28 April 2021. Qalculate is a powerful calculator for Linux that can solve complex mathematical expressions, units conversion, graph plotting and many more sophisticated functions.
^Sharma, Shashank (8 October 2008). "In search of bigger, stronger calculators". Linux.com. Retrieved 28 April 2021. Qalculate!'s autocompletion feature quickly prompts you with all possible variables, functions, and units as soon as you start typing. For instance, on typing c, Qalculate! suggest circle, circumference, cal, cal-mean, candela, and more than a dozen more in-built values.
^Berlasso, Ricardo. "2 scientific calculators for the Linux desktop". Opensource.com. Retrieved 28 April 2021. Qalculate! (with the exclamation point) has a long and complex history. The project offers a powerful library that can be used by other programs (the Plasma desktop can use it to perform calculations from krunner) and a graphical interface built on GTK3. It allows you to work with units, handle physical constants, create graphics, use complex numbers, matrices, and vectors, choose arbitrary precision, and more.
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