pdeprtni - Interpolate from triangle midpoint data to node data
Syntax
un=pdeprtni(p,t,ut)
Description
un=pdeprtni(p,t,ut) gives
linearly interpolated values at node points from the values at triangle
midpoints.
The geometry of the PDE problem is given by the mesh data p and t.
For details on the mesh data representation, see initmesh.
Let N be the dimension of the PDE system, np the
number of node points, and nt the
number of triangles. The components of triangle data in ut are
stored as N rows of length nt.
The components of the node data are stored in un as N columns
of length np.
Caution
pdeprtni and pdeintrp are
not inverse functions. The interpolation introduces some averaging.
See Also
| assempde | Partial Differential Equation Toolbox |
| initmesh | Partial Differential Equation Toolbox |
| pdeintrp | Partial Differential Equation Toolbox |
 | pdepoly | | pderect |  |
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