Tangente: Besides your particularly effective cartoons, your work is strongly marked by formal experiments, often inspired by mathematical constraints. Has this dialogue with mathematics always been a conscious one?**
Étienne Lécroart: Most of the time, yes. I start with mathematical structures and see how they can be adapted to my medium. But I also sometimes bring in mathematics a posteriori. For example, when I created my infinite two-page comic Résonneur (published in Contes & Décomptes, L’Association, 2012; see box), I had to find a suitable mathematical formula in order to complete it.
Some mathematical objects have directly inspired your work—Graeco-Latin squares, Boolean algebra, the four-color theorem… How did these ideas come to you? Through reading about mathematics? Through people you met?