Cot x is 1/tan x or cos x / sin x or +- sqrt cosec^2 x -1.
Original Cast Recording. Arista, 1973. Includes original hit song Day by Day sung by Robin Lamont. Sung by the original cast members David Haskell, Peggy Gordon, Robin Lamont, Gilmer McCormick, Sonia Manzano, Jeffrey Mylett, Stephen Nathan, Herbie Braha, Joanne Jonas, and Lamar Alford.
When the show closed after 127 performances, the song was virtually forgotten and Hupfeld moved on to his next musical. But As Time Goes By was not forgotten by a senior at Cornell University named Murray Burnett who bought the Vallee recording and wore it out.When Burnett traveled to Europe in 1938, he again heard the song, sung this time by a black piano player in a night club called La Belle Aurore on the French Riviera.lthough the only song anyone remembers is As Time Goes By, composer Herman Hupfeld was better known in the '30s for his novelty song When Yuba Plays the Rhumba on the Tuba..