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Elementary math utilities with a focus on random number generation, non-linear optimization, interpolation and solvers

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/*
 * Copyright (C) 2002 Univ. of Massachusetts Amherst, Computer Science Dept.
 * This file is part of "MALLET" (MAchine Learning for LanguagE Toolkit).
 * http://mallet.cs.umass.edu/
 * This software is licensed under the terms of the Apache License, Version 2.0
 * or (at your option) any subsequent version.
 */
package math.optim;

/**
 * @author Andrew McCallum
 *         [email protected]
 */
public interface Optimizable {

    int getNumParameters();

    void getParameters(double[] buffer);

    double getParameter(int index);

    void setParameters(double[] params);

    void setParameter(int index, double value);

    public interface ByGradientValue extends Optimizable {
        void getValueGradient(double[] buffer);

        double getValue();
    }
}