Reginald De Koven[?]
Rudolf Friml[?]
Victor Herbert
Emmerich Kalman[?], also known as Imre Kálmán
Franz Lehar
Jacques Offenbach
Sigmund Romberg[?]
Johann Strauss II
Arthur S. Sullivan (of Gilbert and Sullivan)
... formula The quadratic formula expresses the explicit solution(s) x to the quadratic equation <math>ax^2+bx+c=0</math> in terms of th ...