The Endless Summer is a 1966documentary film which follows surfers around the world as they look for a perfect surfing spot. It was written, directed and narrated by Bruce Brown[?].
... the roots of the equation. The formula reads
<math>
x=\frac{-b \pm \sqrt {b^2-4ac}}{2a}
</math>
The term b2 – 4ac is called the discriminant of the ...