June 18, 2019

R I P of the day

Hastings Mickael Mahon (b. 1980-01-28 / d. 2013-06-18)

He was an American journalist, author, contributing editor to Rolling Stone and reporter for BuzzFeed. Hastings died in a single vehicle automobile crash in his Mercedes C250 Coupé at approximately 4:25 a.m. in the Hancock Park neighborhood of Los Angeles. A witness to the crash said the car seemed to be traveling at maximum speed and was creating sparks and flames before it fishtailed and crashed into a palm tree. Video from a nearby security camera purportedly shows Hastings' vehicle speeding and bursting into flames. Witnesses described the car's engine being ejected 50 to 60 yards (46–55 m) from the scene. Hastings' body was burned beyond recognition. The coroner identified the body by matching fingerprints with those the FBI had on file. Two days after the crash, the Los Angeles Police Department declared that there were no signs of foul play. The coroner's report ruled the death to be an accident. USA Today reported that in the days before his death, Hastings believed his car was being "tampered with" and that he was scared and wanted to leave town.

ECM Factorization. Download our free command line tool (64-bits)

We implementated our own version of Lenstra's elliptic curves method. We make use of python's multiprocessing module to try multiple curves at the same time and we are using gmpy2 for fast arithmetic computations.

The biggest number we factor so far is rsa-79 from Paul Zimmermann's challenges.

Currently, you can get a command line WIN64 through our installer that you can get below

Win 64-bit version here:
setup_ecmpy-amd64.exe (4.5MB, downloaded 129 times).

Send an email to phd@aa55.fr for any comment or suggestion.

Enjoy! And feel free to share and report any champion value you may find.

BOGGLE: A gift from AA55 consulting for decently burying 2015
(and forget about it asap)

Please download and check out our free and superlative BOGGLE game. It is a windows remake of the famous BSD game of the same name (WIN32 build)

Be careful, it looks like a small and innocent thing. It finally appears to be rather addictive and will probably lower your productivity. You are warned!

boggle_setupx32V0_1.exe (7MB, downloaded 232 times).

Lsystem3DX: A gift from AA55 consulting

Please download and check out our L-system editor and displayer. It is a GUI for drawing L-systems (WIN32 build)

NOW a 3D version. Versions after 0.8 include contextual l-systems. There is also a fix in the scene lightening in the opengl window. Latest version can be downloaded here:

setuplsystemV0_9.exe (15MB, downloaded 612 times).

Please, note that you will need to uninstall manually any older version than 0.9.

Your PC may complain about the fact that this executable is not often downloaded, which is the truth actually. But we don't agree with it when it says that it might harm your computer. To force execution you will have to look for the right button somewhere on the window. Though not recommended, an older version can be downloaded here:

lsystem3D-0.7-win32.msi (23MB, downloaded 562 times).

You will be able to download the next release very soon. Keep looking at this page regularly.

This program was written in Python. A commercial version is available for building STL files. Send an email to lsystem@aa55.fr to get conditions and download details of the unlocked version.

lsystem is a graphical user interface for drawing L-system images.

An L-system consists of an alphabet of symbols that can be used to make strings, a collection of production rules that expand each symbol into some larger string of symbols, an initial "axiom" string from which to begin construction, and a mechanism for translating the generated strings into geometric structures. L-systems were introduced and developed in 1968 by Aristid Lindenmayer.

And below the result "in real life" after 3D-printing the corresponding STL file:

On demand, by email, you can even get a corresponding STL file that will allow you to 3D-print your L-system

Play gounki

Please try this unique gounki game by clicking here. You can play 2 players or against a robot.

Please note that the game only works when our personal server is on-line, which is rarely the case.

Please, also note that the game is a work in progress, and currently does not work on Microsoft IE.

To learn how to play, please refer to the following site about Gounki : here


In November, 2007, the deadabase contained 1330 entries

In February, 2008, there were 1690 entries

In February, 2009, there were 2900 entries

In February, 2014, there are 3900 entries


The definition of 'garzol' is here

Taboo of the inside and taboo of the outside "Sur les Docks"

You will find here a translation of an interesting broadcast I listened to on 3/17/2008.

France Culture "Sur les Docks" about taboos With : Serge Lesourd et Marie-Frédérique Bacqué, psychanalystes ; David Le Breton et Thierry Goguel d’Allondans, anthropologues ; Yves de Peretti, cinéaste, et Patrick Banon, chercheur en sciences des religions. Lectures : Lionel Prevel Productrice coordonnatrice : Irène Omélianenko Producteur délégué : Christophe Deleu Réalisation : François Teste

A casual aphorism to think of

It is true that my discovery of LSD was a chance discovery, but it was the outcome of planned experiments and these experiments took place in the framework of systematic pharmaceutical, chemical research. It could better be described as serendipity.

Albert Hofmann

(weather in Vittel)

Definition of the word "GARZOL".
Based on poppycock