Cnoidal wave is the wave height, "λ" is the wavelength, "c" is the phase speed and "η" is the trough elevation. Further cn is one of the Jacobi elliptic functions and "K"("m") is the complete elliptic integral of the first kind; both are dependent on the elliptic parameter "m". The latter, "m", determines the shape of the cnoidal wave. For "m" equal to zero the cnoidal wave becomes a cosine function, while for values close to one the cnoidal wave gets peaked crests and (very) flat troughs. For values of "m" less than 0.95, the cnoidal function can be approximated with trigonometric
The Crests group continued well into the 1990s and toured with a five-piece band including Leona Carter on keys. The 1984 John Hughes' teen film "Sixteen Candles" took its title from The Crests' song, which was re-recorded by The Stray Cats for the"Sixteen Candles" soundtrack. In June 1987, for a concert in Peekskill, New York, Maestro, Carter, Torres, and Gough (The Original Crests) reunited as "The Crests", which was organized by Carter. From 1990-2010, Johnny Maestro invited Carter to join him and The Brooklyn Bridge to record with them and to re-record some of their greatest hits. From the late 2000s until