maspack.function

Interface Diff2Function3x1

All Superinterfaces:

Diff1Function3x1, Function3x1, FunctionNx1

All Known Implementing Classes:

CInfinityWeightFunction, ConstantFunction3x1, ExponentialWeightFunction, MFreeWeightFunction, PolynomialBasisFunction, RadialWeightFunction, SplineWeightFunction

public interface Diff2Function3x1
extends Diff1Function3x1

Twice differentiable 3 x 1 function.

This is currently only used in the propotype meshfree model code. Further usage of this class will probably involve refactoring.

Method Summary

Modifier and Type	Method and Description
double	evalDerivative(double x, double y, double z, int dx, int dy, int dz) Evaluates 1st and 2nd order derivatives, one at a time.
double	evalDerivative(Point3d in, int[] derivatives) Evaluates 1st and 2nd order derivatives, one at a time.

Methods inherited from interface maspack.function.Diff1Function3x1

eval, eval, eval

Methods inherited from interface maspack.function.Function3x1

eval, eval, inputSize

Method Detail

evalDerivative

double evalDerivative(Point3d in,
                      int[] derivatives)

Evaluates 1st and 2nd order derivatives, one at a time.

evalDerivative

double evalDerivative(double x,
                      double y,
                      double z,
                      int dx,
                      int dy,
                      int dz)

Evaluates 1st and 2nd order derivatives, one at a time.