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ButcherPhi


gives the weight of tree in an s-stage Runge-Kutta method.
ButcherPhi[tree]
gives the weight of tree in stage-independent tensor notation.
  • The weight of tree is the left-hand side of the order conditions imposed by tree.
  • The following option can be given:
RungeKuttaMethod$RungeKuttaMethodtype of Runge-Kutta method