Hans Heinrich Bürmann

Hans Heinrich Bürmann (died 1817 in Mannheim) was a German mathematician and teacher. From 1795 he ran an academy of commerce in Mannheim where he taught mathematics, he served as a censor in the city, and in 1811 he was named headmaster of the Commerce Academy of the Grand Duchy of Baden. His research lay in combinatorics, and he helped develop the symbolic language of mathematics. He discovered the generalized form of the Lagrange inversion theorem, now often called the Lagrange-Bürmann formula, and he corresponded and published with Joseph Louis Lagrange and Carl Hindenburg. He is also credited with first introducing the notation f to the power n for the n-th iterate of a function, which John Herschel suggested independently in 1813.