code: package core.optimization.ucbOptimization;
  
  /**
   * Contains information about the current used UCB Equation
   * @author AhmedKhalifa
   */
  public interface UCBEquation {
  	/**
  	 * get the number of parameters used in this equation
  	 * @return number of ucb parameters
  	 */
  	int lengthParameters();
  	/**
  	 * evaluate the ucb equation using the current parameters at the current state
  	 * @param values		state values
  	 * @param parameters	ucb parameters
  	 * @return				ucb equation result
  	 */
  	double evaluate(double[] values, double[] parameters);
  	/**
  	 * print the ucb equation using the current parameters
  	 * @param parameters	ucb parameters
  	 * @return				the ucb equation
  	 */
  	String toString(double[] parameters);
  }
  