Johann Friedrich Hennert (19 October 1733 – 30 March 1813) was German-born and lectured in mathematics and physics at the University of Utrecht. He was a significant student of Leonhard Euler. He was known for his inclination towards the British school of philosophy. Work Hennert held the chair of mathematics at the University of Utrecht until 1805. Hennert was an important figure in the history of Dutch mathematics. He wrote a number of textbooks on differential calculus. Jan van Swinden was one of his most important students. References Helmers Dini M., Timmerman, Petronella Johanna de, in: Digitaal Vrouwenlexicon van Nederland. External links 18th-century German mathematicians 19th-century German mathematicians Number theorists 1733 births 1813 deaths Mathematical analysts