In mathematics, the antipodal point of a point on the surface of a sphere is the point which is diametrically opposite to it — so situated that a line drawn from the one to the other passes through the centre of the sphere and forms a true diameter.
This term applies to opposite points on a circle or any n-sphere.
An antipodal point is sometimes called an antipode, a back-formation from the Greek loan word antipodes, which originally meant "opposite the feet."
Read more about Antipodal Point: Theory, Antipodal Pair of Points On A Convex Polygon
Famous quotes containing the word point:
“In order to really enjoy a dog, one doesn’t merely try to train him to be semihuman. The point of it is to open oneself to the possibility of becoming partly a dog.”
—Edward Hoagland (b. 1932)