7.7 Application Comets and Spacecraft

Figure 7.7.13 lists TI-Nspire CX CAS and Python versions of the two-dimensional Runge–Kutta program RK2DIM. You should note that it closely parallels the one-dimensional Runge–Kutta program listed in Fig. 2.6.11, with a single line there replaced (where appropriate) with two lines here to calculate a pair of x- and y-values or slopes. Note also that the notation used is essentially that of Eqs. (13) and (14) in this section. The first several lines define the functions and initial data needed for ...

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