Pebbles – calculator app

Pebbles is a graphical calculator designed for more demanding mathematical work. It combines conventional scientific calculations with specialised tools for calculus, statistics, graph plotting and programming.

The application provides several calculation modes, allowing you to switch between different mathematical tasks. These include scientific calculations, derivatives and integrals, statistical analysis, date calculations and operations involving different number bases.

Version 3.0 introduced graphing capabilities with interactive plotting, together with support for complex numbers and more advanced statistical visualisation. The statistics mode can analyse individual data columns and display trends using different graph types.

Pebbles also includes a collection of unit converters covering physical measurements and currencies. More recent improvements include independent scaling of graph axes and better performance when panning or zooming graphs. The interface uses GTK4 and libadwaita.

This is free and open source software.

Key Features

• Provides scientific, calculus, programmer, statistics, graphing and date calculation modes.
• Supports complex numbers and advanced mathematical expressions.
• Plot mathematical functions interactively with independent scaling of graph axes.
• Perform statistical calculations, analyse data columns and visualise trends using graphs.
• Convert between units of length, area, volume, time, angle, speed, mass, pressure, energy, power, temperature and data.
• Supports currency conversion using exchange-rate data.
• Maintain calculation history within the relevant calculator modes.
• Offers preferences for restoring saved state and controlling the display of results.
• Uses GTK4 and libadwaita for desktop integration.

Website: github.com/SubhadeepJasu/pebbles
Support:
Developer: Subhadeep Jasu
License: GNU General Public License v3.0

Pebbles is written in Vala. Learn Vala with our recommended free books and free tutorials.

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