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InterpolatingFunction::femdmval

Details

  • This message is generated when an InterpolatingFunction expression is evaluated outside of its domain.
  • Although this message does not necessarily represent an error, extrapolation beyond the range of interpolation can give unexpected or misleading results.
  • Off[message] switches off the message; On[message] switches it on. For example: Off[InterpolatingFunction::femdmval].

Examples

Basic Examples  (1)Summary of the most common use cases

Create a solution to a PDE and evaluate the InterpolatingFunction expression outside the domain for which the solution was found:

In[1]:=1
✖
https://wolfram.com/xid/0nj5zta224p0y01n4nl1pq-hik8g2
Out[1]=1

Generally speaking, nothing is known about the solution beyond the boundary conditions. Nevertheless, this behavior can be switched off:

In[2]:=2
✖
https://wolfram.com/xid/0nj5zta224p0y01n4nl1pq-0ely6m
Out[2]=2

More information can be found in the tech note Finite Element Options for NDSolve.