package umontreal.iro.lecuyer.functions;



/**
 * Represents a mathematical function whose
 * integral can be computed by the
 * {@link #integral(double, double) integral} method.
 * 
 */
public interface MathFunctionWithIntegral extends MathFunction {


   /**
    * Computes (or estimates) the integral of the 
    *    function over the interval [a, b].
    * 
    * @param a the starting point of the interval.
    * 
    *    @param b the ending point of the interval.
    * 
    *    @return the value of the integral.
    */
   public double integral (double a, double b);
}