I am reading a book on fuzzy logic that was translated from Japanese. The translation is quite bad and difficult to read. At one point it was talking about calc

I am reading a book on fuzzy logic that was translated from Japanese. The translation is quite bad and difficult to read. At one point it was talking about calculus and mentioned Newton and "Ripunitz". It took me a minute to work out what I was reading: Leibniz -> ライプニッツ (ripunittsu) -> Ripunitz