# Natural Neighbor Linear Interpolation

The easiest way to use Natgrid is
to do natural neighbor linear interpolation.
For a discussion of natural neighbor linear interpolation, review
the section in the introduction on
the interpolation
method used in Natgrid.
If the default settings for the
control parameters are
what you want, then you can do natural neighbor linear interpolation
by invoking a single procedure.
Example 1 presents
a simple natural neighbor linear interpolation; it provides
codes using all four of the user interfaces.

If you have a relatively large number of
input data points (like a few hundred or more), then natural neighbor
linear interpolation may produce a satisfactorily smooth surface for
you. Doing natural neighbor linear interpolation is much less expensive
than augmenting it, for appearance, by blending in gradient
estimates (as described in
the module Natural neighbor non-linear
interpolation). See the module on efficiency
considerations for details on efficiency.

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