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Direction (geometry, geography)

 
Direction (geometry, Geography)

 
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Direction (geometry, geography)
 
 
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Direction is the information contained in the relative position of one point with respect to another point without the distance
Distance

Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, a period of time, or an estimation based on other criteria ....
 information. Directions may be either relative
Relative direction

The most common relative Direction are wikt:left, wikt:right, :wikt:forward, :wikt:backward, :wikt:up, and :wikt:down....
 to some indicated reference (the violins in a full orchestra are typically seated to the left of the conductor), or absolute according to some previously agreed upon frame of reference (New York City lies due west of Madrid).






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Direction is the information contained in the relative position of one point with respect to another point without the distance
Distance

Distance is a numerical description of how far apart objects are. In physics or everyday discussion, distance may refer to a physical length, a period of time, or an estimation based on other criteria ....
 information. Directions may be either relative
Relative direction

The most common relative Direction are wikt:left, wikt:right, :wikt:forward, :wikt:backward, :wikt:up, and :wikt:down....
 to some indicated reference (the violins in a full orchestra are typically seated to the left of the conductor), or absolute according to some previously agreed upon frame of reference (New York City lies due west of Madrid). Direction is often indicated manually by an extended index finger
Index finger

The index finger, also referred to as, pointer finger, forefinger, trigger finger, digitus secundus, or digitus II, is the second finger of a human hand....
 or written as an arrow
Arrow

An arrow is a pointed projectile that is shot with a bow . It predates recorded history and is common to most cultures....
. On a vertically oriented sign representing a horizontal plane, such as a road sign, "forward" is usually indicated by an upward arrow. Mathematically, direction may be uniquely specified by a unit vector
Unit vector

In mathematics, a unit vector in a normed vector space is a Vector space whose Norm is 1 . A unit vector is often denoted by a lowercase letter with a superscribed caret or ?hat?, like this: ....
 in a given basis
Basis

Basis may refer to* Basis future, the value differential between a future and the spot price* Basis , the value differential between a call option and a put option...
, or equivalently by the angles made by the most direct path with respect to a specified set of axes.

See also

  • Cardinal direction
    Cardinal direction

    The four cardinal directions or cardinal points are north, south, east, and west, commonly denoted by their initials - N, S, E, W. They are mostly used for geography orientation on Earth but may be calculated anywhere on a rotating astronomical object....
  • Compass
    Compass

    A compass, magnetic compass or mariner's compass is a navigational instrument for determining direction relative to the earth's magnetic poles....
  • Navigation
    Navigation

    Navigation is the process of reading, and controlling the movement of a craft or vehicle from one place to another. It is also the term of art used for the specialized knowledge used by navigators to perform navigation tasks....
  • For finding the direction to a radio source, see radio direction finder
    Radio direction finder

    A radio direction finder is a device for finding the direction to a radio source. Due to radio's ability to travel very long distances and "over the horizon", it makes a particularly good navigation system for ships and aircraft that might be some distance from their destination ....
    .
  • Relative direction
    Relative direction

    The most common relative Direction are wikt:left, wikt:right, :wikt:forward, :wikt:backward, :wikt:up, and :wikt:down....