Method Detail

• partialDerivative

  MultivariateFunction partialDerivative(int k)

  Deprecated. 
  Returns the partial derivative of the function with respect to a point coordinate.

  The partial derivative is defined with respect to point coordinate x_k. If the partial derivatives with respect to all coordinates are needed, it may be more efficient to use the gradient() method which will compute them all at once.

  Parameters:

  k - index of the coordinate with respect to which the partial derivative is computed

  Returns:

  the partial derivative function with respect to k^th point coordinate

• gradient

  MultivariateVectorFunction gradient()

  Deprecated. 
  Returns the gradient function.

  If only one partial derivative with respect to a specific coordinate is needed, it may be more efficient to use the partialDerivative(int) method which will compute only the specified component.

  Returns:

  the gradient function