In The Real Plane
In a Cartesian coordinate system with coordinates (x, y) the unit square is defined as the square consisting of the points where both x and y lie in a closed unit interval from 0 to 1 on their respective axes.
That is, the unit square is the Cartesian product I × I, where I denotes the closed unit interval.
It is not known whether any point in the plane is a rational distance from all four vertices of the unit square. However, no such point is on an edge of the square.
Read more about this topic: Unit Square
Famous quotes containing the words real and/or plane:
“The dignity to be sought in death is the appreciation by others of what one has been in life,... that proceeds from a life well lived and from the acceptance of one’s own death as a necessary process of nature.... It is also the recognition that the real event taking place at the end of our life is our death, not the attempts to prevent it.”
—Sherwin B. Nuland (b. 1930)
“with the plane nowhere and her body taking by the throat
The undying cry of the void falling living beginning to be something
That no one has ever been and lived through screaming without enough air”
—James Dickey (b. 1923)