Merge branch 'recette'
Merge branch 'sets' into develop
Merge branch 'develop' into math
merge avec la branche develop
Initialisation des exceptions et de la classe System
Merge branch 'exception' into develop
Affinage de la classe Exception
Merge branch 'exception' into develop
Merge branch 'develop' into math
Correction des constantes statiques (vidange mémoire)
Merge branch 'math' into develop
Merge branch 'develop' into sets