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The COSY 8th Order Runge Kutta Integrator

Abstract

We studied simple example problems to compare the performance of the COSY 8th order Runge Kutta integrator RK, and two of fourth order Runge Kutta integrators; RK4 with fixed step size, and RK4S with automatic step size control. The resulting low accuracy by the fourth order integrators convinces us to urge to use high accuracy integrators for modern computational needs.

K. Makino, MUC-NOTE-COOL_THEORY-238 (2002)

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