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ptc-61415841-Visitor
1-Visitor
June 8, 2014
Question

Radau Solver error: this value must be a vector.

  • June 8, 2014
  • 4 replies
  • 1644 views

I get an error with Radau(init, x1, x2, intvls, D) as 'This value must be a vector.' I'm quite sure I made init and D vectors, and x1 x2 intvls ordinary numbers. Please see the attachment and tell me where the problem is. thanks

4 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
June 8, 2014

Use the literal index for t.0, not the vector index.

P
ptc-61415841-VisitorAuthor
1-Visitor
June 8, 2014

Thanks, Werner.

That should be one of the problems. But it seems it does not let the solver back to work.

P
ptc-61415841-VisitorAuthor
1-Visitor
June 8, 2014

The other problem is ths function is complex enough for the Radau, the difference between x1 and x2 need to be small enough to allow the solver work.

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