Appell is a surname. Notable people with the surname include: Dave Appell (1922–2014), American arranger, producer, and musician. Olga Appell (born 1963), Mexican-American long-distance runner. Paul Émile Appell or M. P. Appell (1855–1930), French mathematician and rector of the University of Paris. Appell polynomials, a polynomial sequence named after Paul Appell. Appell's equation of motion, an alternative formulation of classical mechanics. See also. Apel (disambiguation) Appel (disambiguation) Apple. Apple (disambiguation)
https://en.wikipedia.org/wiki/Appell