Symbolibre

Graphics acceleration on the Raspberry Pi Zero

Sébastien Michelland — Sat, 10 Apr 2021 00:00:00 +0200

The minimalist nature of the Raspberry Pi Zero makes graphics acceleration a very useful optimization to maintain performance on both the desktop and applications. Yet documentation on the subject is …

What free software is and why it matters

Sébastien Michelland — Tue, 16 Feb 2021 00:00:00 +0100

The Symbolibre project is all about graphing calculators and free software. But what is free software exactly, and why does it matter so much that we'd make a whole …

A design example: function keys and the catalog

Sébastien Michelland — Sat, 26 Dec 2020 00:00:00 +0100

The design of good user interfaces for graphical applications is a science, and in fact also a field of research. While none of us at Symbolibre specialize in that …

Releasing Symbolibre 0.2

Nicolas Chappe — Sat, 05 Dec 2020 00:00:00 +0100

Over a year after our master's degree project course ended, we are happy to release the version 0.2 of Symbolibre under the GNU GPLv3 free software license. You …

Symbolibre's first-year report

Sébastien Michelland — Sun, 02 Jun 2019 00:00:00 +0200

The Symbolibre project started as a project course in our theoretical computer science master’s degree at the ENS de Lyon.

Our second semester is now over, and we …

The public presentation

Sébastien Michelland — Sun, 07 Apr 2019 00:00:00 +0200

The project’s public presentation took place last Thursday at the ENS de Lyon. We watched the presentation of Avatar ENSignes about the representation and processing of sign language before …

Don’t miss the public project presentation!

Bastien Durain — Tue, 02 Apr 2019 00:00:00 +0200

As the end of the MSc project draws near, we are happy to invite you to our public presentation of the Symbolibre calculator, where you can discover the current …

Summary of our poll to students

Bastien Durain — Sat, 30 Mar 2019 00:00:00 +0100

As part of the development of our calculator, a poll has been set up for high school students and shared with a few math teachers around Lyon. The goal was …

Update on math applications

Nicolas Levy — Mon, 25 Mar 2019 00:00:00 +0100

The math applications development group is happy to show you its progress. The interactive formula editor works well and interacts directly with the computer algebra engine, as we can see …

Computer algebra systems

Sébastien Michelland — Fri, 22 Mar 2019 00:00:00 +0100

When the Symbolibre project started, it was decided right away that the calculator had to support computer algebra. But this leaves a wide spectrum of tools to choose from …

The software stack

Sébastien Michelland — Tue, 12 Mar 2019 00:00:00 +0100

The only software tool that is required by our hardware is Linux. The rest of the system stack is entirely up to us, and we’re going to develop our …

Selecting hardware for the prototypes

Nicolas Levy — Fri, 08 Mar 2019 00:00:00 +0100

To build the first prototypes, we wanted to select widely-available and technically accessible hardware. We are not trained in electronics, so we needed a functional machine quickly to move on …