January 22 - Buddy Holly records some acoustic demos in his New York City apartment. These songs would be the last songs recorded by Holly. Songs included "Peggy Sue Got Married," "Crying, Waiting, Hoping," "Learning the Game," "What to Do," "That's What They Say" and "That Makes it Tough."
... term b2 – 4ac is called the discriminant of the quadratic equation, because it discriminates between three qualitatively different cases:
If the ...