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Stir in the central field

The trajectory of a particle in a central calculated using the Runge-Kutta methods and a small number of points (from 100 to 1000).
For the law of Kepler (-α/r, α>0) is an almost closed trajectory.
When driving in an oscillator (central force with potential energy βr², β>0) has the ideal trajectory.

Number of pixels:
Distance to center field, m:
Module is the initial velocity, m/s:
The mass of the moving body, kg:
Angle, degrees:	Angle between the initial velocity and initial position
The function of the central field:	The potential energy of the central field. Depends only on the distance r
Show the trajectory:

Stir in the central field maximum scale.

Pendulums, oscillations
Механика
- Stir in the central field
Calculation chain

Referats
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