/*
* Open Source Physics software is free software as described near the bottom of this code file.
*
* For additional information and documentation on Open Source Physics please see:
* <http://www.opensourcephysics.org/>
*/
package org.opensourcephysics.tools;
import org.opensourcephysics.numerics.Function;
/**
* Title: KnownFunction
* Description: A function that provides its name, expression and parameters to users.
*/
public interface KnownFunction extends Function {
/**
* Gets the parameter count.
* @return the number of parameters
*/
public int getParameterCount();
/**
* Gets a parameter name.
*
* @param i the parameter index
* @return the name of the parameter
*/
public String getParameterName(int i);
/**
* Gets a parameter value.
*
* @param i the parameter index
* @return the value of the parameter
*/
public double getParameterValue(int i);
/**
* Gets a parameter description. May be null.
*
* @param i the parameter index
* @return the description of the parameter (may be null)
*/
public String getParameterDescription(int i);
/**
* Sets a parameter value.
*
* @param i the parameter index
* @param value the value
*/
public void setParameterValue(int i, double value);
/**
* Sets the parameters.
*
* @param names the parameter names
* @param values the parameter values
* @param descriptions the parameter descriptions
*/
public void setParameters(String[] names, double[] values, String[] descriptions);
/**
* Gets the equation.
*
* @param indepVarName the name of the independent variable
* @return the equation
*/
public String getExpression(String indepVarName);
/**
* Gets the name of the function.
*
* @return the name
*/
public String getName();
/**
* Sets the name of the function.
*
* @param name the name
*/
public void setName(String name);
/**
* Gets the description of the function.
*
* @return the description
*/
public String getDescription();
/**
* Sets the description of the function.
*
* @param description the description
*/
public void setDescription(String description);
/**
* Gets a clone of the function.
*
* @return the clone
*/
public KnownFunction clone();
/**
* Determines if another Object is the same as this one.
*
* @param f the Object to test
* @return true if equal
*/
public boolean equals(Object f);
}
/*
* Open Source Physics software is free software; you can redistribute
* it and/or modify it under the terms of the GNU General Public License (GPL) as
* published by the Free Software Foundation; either version 2 of the License,
* or(at your option) any later version.
* Code that uses any portion of the code in the org.opensourcephysics package
* or any subpackage (subdirectory) of this package must must also be be released
* under the GNU GPL license.
*
* This software is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston MA 02111-1307 USA
* or view the license online at http://www.gnu.org/copyleft/gpl.html
*
* Copyright (c) 2007 The Open Source Physics project
* http://www.opensourcephysics.org
*/