Method Detail

• evaluate

  double evaluate(double[] argument,
                  double[] gradient)

  compute both function value and gradient at a point

  Parameters:

  argument - function argument (vector)

  gradient - gradient (on return)

  Returns:

  function value

• computeGradient

  void computeGradient(double[] argument,
                       double[] gradient)

  compute gradient at a point

  Parameters:

  argument - function argument (vector)

  gradient - gradient (on return)