org.apache.commons.math3.analysis.interpolation
Interfaces 
BivariateGridInterpolator
MultivariateInterpolator
TrivariateGridInterpolator
UnivariateInterpolator
Classes 
BicubicSplineInterpolatingFunction
BicubicSplineInterpolator
DividedDifferenceInterpolator
HermiteInterpolator
LinearInterpolator
LoessInterpolator
MicrosphereInterpolatingFunction
MicrosphereInterpolator
NevilleInterpolator
SmoothingPolynomialBicubicSplineInterpolator
SplineInterpolator
TricubicSplineInterpolatingFunction
TricubicSplineInterpolator
UnivariatePeriodicInterpolator