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Questions on the symbolic (DSolve, DifferentialRoot) and numerical (NDSolve) solutions of differential equations in Mathematica.

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Original I'm looking to write an integrator for a function of two variables. Here is my implementation for the RK4 update rule using FoldList. RK4Update[fx_, x_, prms_, numsteps_] := Block[{}, 1.0/ …
asked Jun 27 '15 by sampson