Mathematica Asked on November 30, 2020
I have two functions given by the following differential equation system:
eqn={
T''[t] == (2 m)/(2 R[t] (R[t] - 2 m)) T'[t] R'[t],
R''[t] == (2 m (R[t] - 2 m))/R[t]^3 T'[t] T'[t] - (2 m)/(2 R[t] (R[t] - 2 m)) R'[t]^2
}
This must be solved with NDSolve
since they are too complicated, the initial conditions are R'[0]==0,R[0]==Infinity
and T[0]==0,T'[0]==1
My question is about the Infinity
in the initial conditions: how to correctly impose it?
In the above equations m=10
.
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