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MathGroup Archive 1998

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NDSolve vs. DSolve



In the following examples the DSolve solves easily while the NDSolve is
producing the listed error messages. Why is that and how is it
bypassed.

DSolve[y'''[x]==-Cos[x],y[0]==0,y[5]==0,y'[0]==0,y[x],x]

NDSolve[y'''[x]==-Cos[x],y[0]==0,y[5]==0,y'[0]==0,y[x],{x,0,5}]

NDSolve::unsol:
    Not possible to initiate boundary value problem with the chasing
method

Please reply to c958038@student.dtu.dk or torhans@image.dk Thanks a lot




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