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Jump to navigationJump to searchCreated page with 'File:lighterstill.jpgright|frame ==Origin== New Latin ''trajectoria'', from feminine of ''trajectorius'' of passing, from Latin ...'
[[File:lighterstill.jpg]][[File:Pilobolus_trajectory.gif|right|frame]]
==Origin==
New Latin ''trajectoria'', from [[feminine]] of ''trajectorius'' of passing, from [[Latin]] ''traicere'' to cause to cross, cross, from ''trans''-, ''tra''- trans- + ''jacere'' to throw
*[http://en.wikipedia.org/wiki/17th_century 1696]
==Definitions==
*1: the curve that a body (as a [[planet]] or [[comet]] in its orbit or a rocket) describes in [[space]]
*2: a [[path]], [[progression]], or line of development resembling a physical trajectory <an upward career trajectory>
==Description==
A '''trajectory''' is the [[path]] that a moving object follows through [[space]] as a [[function]] of [[time]]. The object might be a [http://en.wikipedia.org/wiki/Projectile projectile] or a [[satellite]], for example. It thus includes the [[meaning]] of [[orbit]]—the path of a [[planet]], an asteroid or a [[comet]] as it travels around a central mass. A trajectory can be described [[mathematically]] either by the [[geometry]] of the [[path]], or as the position of the object over [[time]].
In [http://en.wikipedia.org/wiki/Control_theory control theory] a trajectory is a time-ordered set of states of a [http://en.wikipedia.org/wiki/Dynamical_system dynamical system] (see e.g. [http://en.wikipedia.org/wiki/Poincar%C3%A9_map Poincaré map]). [http://en.wikipedia.org/wiki/Trajectory]
[[Category: Physics]]
==Origin==
New Latin ''trajectoria'', from [[feminine]] of ''trajectorius'' of passing, from [[Latin]] ''traicere'' to cause to cross, cross, from ''trans''-, ''tra''- trans- + ''jacere'' to throw
*[http://en.wikipedia.org/wiki/17th_century 1696]
==Definitions==
*1: the curve that a body (as a [[planet]] or [[comet]] in its orbit or a rocket) describes in [[space]]
*2: a [[path]], [[progression]], or line of development resembling a physical trajectory <an upward career trajectory>
==Description==
A '''trajectory''' is the [[path]] that a moving object follows through [[space]] as a [[function]] of [[time]]. The object might be a [http://en.wikipedia.org/wiki/Projectile projectile] or a [[satellite]], for example. It thus includes the [[meaning]] of [[orbit]]—the path of a [[planet]], an asteroid or a [[comet]] as it travels around a central mass. A trajectory can be described [[mathematically]] either by the [[geometry]] of the [[path]], or as the position of the object over [[time]].
In [http://en.wikipedia.org/wiki/Control_theory control theory] a trajectory is a time-ordered set of states of a [http://en.wikipedia.org/wiki/Dynamical_system dynamical system] (see e.g. [http://en.wikipedia.org/wiki/Poincar%C3%A9_map Poincaré map]). [http://en.wikipedia.org/wiki/Trajectory]
[[Category: Physics]]
