Christian Kramp (1760-1826)

Christian Kramp (1760-1826)

Christian Kramp, a French mathematician, was the first to use the factorial notation (n!) as we know it today, in his work Éléments d’Arithmétique Universelle in 1808. The more general concept of factorial was introduced at the same time by French mathematician Louis François Antoine Arbogast (1759-1803).