Hyperbolic Plane

In mathematics, the term hyperbolic plane may refer to:

  • A two-dimensional plane in hyperbolic geometry
  • A two-dimensional plane in Minkowski space (the plane of the hyperbolic numbers)
  • A two-dimensional quadratic space with a non-singular isotropic quadratic form

Famous quotes containing the word plane:

    “It was the most ungrateful and unjust act ever perpetrated by a republic upon a class of citizens who had worked and sacrificed and suffered as did the women of this nation in the struggle of the Civil War only to be rewarded at its close by such unspeakable degradation as to be reduced to the plane of subjects to enfranchised slaves.”
    —Anna Howard Shaw (1847–1919)