umontreal.iro.lecuyer.functions

Interface MathFunctionWithFirstDerivative

All Superinterfaces:

MathFunction

All Known Implementing Classes:

AverageMathFunction, BSpline, IdentityMathFunction, LeastSquares, PolInterp, Polynomial, PowerMathFunction, ShiftedMathFunction, SmoothingCubicSpline, SquareMathFunction

public interface MathFunctionWithFirstDerivative
extends MathFunction

Represents a mathematical function whose derivative can be computed using derivative.

Method Summary

Modifier and Type	Method and Description
double	derivative(double x) Computes (or estimates) the first derivative of the function at point x.

Methods inherited from interface umontreal.iro.lecuyer.functions.MathFunction

evaluate

Method Detail

derivative

double derivative(double x)

Computes (or estimates) the first derivative of the function at point x.

Parameters:

x - the point to evaluate the derivative to.

Returns:

the value of the derivative.