mathematical methods  search
RTalgorithms
 data processing
 equations
 Bayesian analysis
 DRASTIC
 Archie's law
 crosscorrelation
 cladistics
 Born approximation
 chaos
 fractals
 cokriging
 genetic algorithms
 Fourier analysis
 eigenvalues
 functions
 extrapolation
 Galerkin method
 fuzzy logic
 geostat
SNUsed as a general term.