HTML version of Scripted Foils prepared 28 December 1996

Foil 25 Solving the N-body equations of motion

From CPS615-Discussion of Ordinary Differential Equations and Start of Parallel N-Body Algorithm Delivered Lectures of CPS615 Basic Simulation Track for Computational Science -- 10 October 96. by Geoffrey C. Fox *
Secs 221.7
1 Introduce 3 vectors X V A for position,velocity and acceleration of particles
2 Numerical techniques iterate equations over time using
3 Euler's Equation gives:
4 X(t+dt) = X(t) + h * V(t)
5 V(t+dt) = V(t) + h * Grav(X(t))
6 Note i labels particles not time steps
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