Interpolation in Excel based on Splines and Natural Neighbor Algorithm

2D (Curve) Interpolation
Use INTERPXY to:
  1. Interpolate from a set of (x,y) data points.
  2. Map a set of scattered (x,y) data points onto a uniform grid for curve plotting.
3D (Surface) Interpolation
Use INTERPXYZ to:
  1. Interpolate from a set of (x,y,z) data points.
  2. Map a set of scattered (x,y,z) data points onto a uniform rectilinear grid for surface plotting.

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ExceLab: Transforming Excel into a Calculus Power House
ExceLab functions and methods are protected by USA Patents 9286286, 9892108, 10114812 and pending.
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