Gravitation2D

This software can calculate the trajectories of planets in a two dimensions space ( the planets are
moving in a plane ) frames with rounded corners are action buttons ; the rectangular frames are displays.

4 Systems are proposed :
-1 center planet and 1 satellite : the mass of the satellite is considered void compared to the planet
Central (eg satellite and Earth or Sun and Earth)
-2 Planets : when the masses of the planets influence each other ( eg Earth and Moon)
-2 planets 1 satellite : two masses influence each other and the massless 1 satellite is subjected to the action of the 2 masses
-3 Planets : the masses act on each other
In each system there is a example key and a user key ; key example displays a context
; this context may be amended and registered .
the user touches presented in a drop-down Table the context recorded by the user ; the recorded contexts can be erased by a long Click.
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Ce logiciel permet de calculer les trajectoires de planetes dans un espace a deux dimensions (les planetes se deplacent dans un plan ) Les cadres avec coins arrondis sont des touches d'action ; les cadres rectangulaires sont des affichages.

4 Systemes sont proposes:
-1 planete centrale et 1 satellite : la masse du satellite est consideree comme nulle par rapport a la planete centrale ( exemple : Terre et satellite ou Soleil et Terre)
-2 planetes : lorsque les masses des planetes influent l'une sur l'autre (exemple Terre et Lune)
-2 planetes 1 satellite : 2 masses influent l'une sur l'autre et 1 satellite sans masse est soumis a l'action des 2 masses
-3 Planetes : les masses agissent les unes sur les autres
Dans chaque systeme il y a une touche exemple et une touche utilisateur ; la touche exemple permet d'afficher une situation ; cette situation peut etre modifiee puis enregistree.
la touche utilisateur presente dans un tableau deroulant les situations enregistrees par l'utilisateur ; les situations enregistrees peuvent etre effacees par un longClick.
................... This software can calculate the trajectories of planets in a two-dimensional space (the planets are
moving in a flat) frames with rounded corners are Action buttons; the frames are rectangular displays.

 4 Proposed Systems are:
-1 And 1 satellite center planet: the mass of the satellite is regarded Compared To void the planet
Central (eg satellite and Earth Golden Sun and Earth)
Planets -2: when the masses of the planets influences Each Other (eg Earth and Moon)
-2 1 satellite planets: two masses influenced Each Other and the massless 1 satellite is Subjected to the Action of the two masses
-3 Planets: the masses act is Each Other
Each system in There Is a key example and a user key; key example displays a context
; May be this context Amended and registered.
the user keys presented in a drop-down table the context Recorded by the user; Recorded the contexts can be erased by long Click.
..............
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This software can calculate the trajectories of planets in a space has two dimensions (the planets move in a plane) frames with rounded corners are action buttons; rectangular frames are displays.

4 Systems are proposed:
-1 And 1 satellite center planet the mass of the satellite is considered null in relation to the central planet (eg terrestrial and satellite or Sun and Earth)
-2 Planets: when the masses of the planets influence each other (eg Earth and Moon)
-2 1 satellite planets: two masses influence each other and one satellite without mass is subjected to the action of the two masses
-3 Planets: the masses act on each other
In each system there is a key and a user key example; key example displays a situation; this situation may be amended and registered.
the user touches presented in a table deroulant the situations recorded by the user; the recorded situations can be erased by a longClick.
...................