NOTE: This page uses common physics notation for spherical coordinates, in which is the angle between the z axis and the radius vector connecting the origin to the point in question, while is the angle between the projection of the radius vector onto the x-y plane and the x axis. Several other definitions are in use, and so care must be taken in comparing different sources.
Famous quotes containing the word fields:
“To the Ocean now I fly,
And those happy climes that ly
Where day never shuts his eye,
Up in the broad fields of the sky:”
—John Milton (1608–1674)