org.ddogleg.optimization.funcs

Class EvalFuncDodcfg

java.lang.Object

org.ddogleg.optimization.funcs.EvalFuncDodcfg

All Implemented Interfaces:

EvalFuncMinimization

public class EvalFuncDodcfg
extends java.lang.Object
implements EvalFuncMinimization

Test function for large scale unconstrained minimization.

     This subroutine computes the function and gradient of the
     optimal design with composite materials problem.

     MINPACK-2 Project. November 1993.
     Argonne National Laboratory and University of Minnesota.
     Brett M. Averick.
 

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	EvalFuncDodcfg.Deriv
class	EvalFuncDodcfg.Func

Constructor Summary

Constructors

Constructor and Description
EvalFuncDodcfg(int nx, int ny, double lambda)

Method Summary

Modifier and Type	Method and Description
double	computeStuff(boolean feval, boolean geval, double[] x, double[] fgrad)
double	dodcps(double t, double mu1, double mu2, double t1, double t2, int option, double lambda) This subroutine computes the function psi(t) and the scaled functions psi'(t)/t and psi''(t)/t for the optimal design with composite materials problem.
FunctionNtoS	getFunction()
FunctionNtoN	getGradient()
double[]	getInitial()
double	getMinimum()
double[]	getOptimal()

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

EvalFuncDodcfg

public EvalFuncDodcfg(int nx,
                      int ny,
                      double lambda)

Method Detail

getMinimum

public double getMinimum()

Specified by:

getMinimum in interface EvalFuncMinimization

getFunction

public FunctionNtoS getFunction()

Specified by:

getFunction in interface EvalFuncMinimization

getGradient

public FunctionNtoN getGradient()

Specified by:

getGradient in interface EvalFuncMinimization

getInitial

public double[] getInitial()

Specified by:

getInitial in interface EvalFuncMinimization

getOptimal

public double[] getOptimal()

Specified by:

getOptimal in interface EvalFuncMinimization

computeStuff

public double computeStuff(boolean feval,
                           boolean geval,
                           double[] x,
                           double[] fgrad)

dodcps

public double dodcps(double t,
                     double mu1,
                     double mu2,
                     double t1,
                     double t2,
                     int option,
                     double lambda)

This subroutine computes the function psi(t) and the scaled functions psi'(t)/t and psi''(t)/t for the optimal design with composite materials problem.

Parameters:

t -

mu1 -

mu2 -

t1 -

t2 -

option -

lambda -

Returns: