BilinearInterpolation:

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   Apply bilinear interpolation on 4 data points.

   Type BilinearInterpolation for a demo.

   Since version 2014.1
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   Form:
   zi = BilinearInterpolation( x, y, z, xi, yi );
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   ------
   Inputs
   ------
   x   (1,2) Values
   y   (1,2) Values
   z   (2,2) Values
   xi  (1,:) Inputs
   yi  (1,:) Inputs

   -------
   Outputs
   -------
   zi  (:,:) Interpolated values

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