|Anime debut||Yu-Gi-Oh! GX episode 90: "Pro-Dueling"|
Mathmatica, known as Mathematica (マティマティカ Mattimatika) in the Japanese version, is the 10th-ranked Pro League Duelist at the time of the Genex Tournament. He wears a red suit covered in numbers. During the Genex Tournament, he challenges Damon but loses. Prior to this, he is shown defeating several Duel Academy students, resulting in others actually running away to avoid Dueling him. He manages to catch up to the others, but ends up losing to Damon.
Voices and mannerisms
In the dub, he rhymes what he says with math equations.
Mathmatica plays a Math Deck, which appears to focus on a Lockdown strategy using "Gravity Bind" while inflicting damage with "Fatal Abacus".