org.apache.commons.math.analysis.interpolation
Interfaces 
BivariateRealGridInterpolator
MultivariateRealInterpolator
TrivariateRealGridInterpolator
UnivariateRealInterpolator
Classes 
BicubicSplineInterpolatingFunction
BicubicSplineInterpolator
DividedDifferenceInterpolator
LinearInterpolator
LoessInterpolator
MicrosphereInterpolatingFunction
MicrosphereInterpolator
NevilleInterpolator
SmoothingBicubicSplineInterpolator
SmoothingPolynomialBicubicSplineInterpolator
SplineInterpolator
TricubicSplineInterpolatingFunction
TricubicSplineInterpolator