Hyperbola - Rectangular Hyperbola With Horizontal/vertical Asymptotes (Cartesian Coordinates)

Rectangular Hyperbola With Horizontal/vertical Asymptotes (Cartesian Coordinates)

Rectangular hyperbolas with the coordinate axes parallel to their asymptotes have the equation

.

These are equilateral hyperbolas (eccentricity ) with semi-major axis and semi-minor axis given by .

The simplest example of rectangular hyperbolas occurs when the center (h, k) is at the origin:

describing quantities x and y that are inversely proportional. By rotating the coordinate axes counterclockwise by 45 degrees, with the new coordinate axes labelled the equation of the hyperbola is given by canonical form

.

Read more about this topic:  Hyperbola

Famous quotes containing the words horizontal and/or vertical:

    Thir dread commander: he above the rest
    In shape and gesture proudly eminent
    Stood like a Towr; his form had yet not lost
    All her Original brightness, nor appear’d
    Less than Arch Angel ruind, and th’ excess
    Of Glory obscur’d: As when the Sun new ris’n
    Looks through the Horizontal misty Air
    Shorn of his Beams, or from behind the Moon
    In dim Eclips disastrous twilight sheds
    On half the Nations, and with fear of change
    Perplexes Monarchs.
    John Milton (1608–1674)

    In bourgeois society, the French and the industrial revolution transformed the authorization of political space. The political revolution put an end to the formalized hierarchy of the ancien regimé.... Concurrently, the industrial revolution subverted the social hierarchy upon which the old political space was based. It transformed the experience of society from one of vertical hierarchy to one of horizontal class stratification.
    Donald M. Lowe, U.S. historian, educator. History of Bourgeois Perception, ch. 4, University of Chicago Press (1982)