Q. Which of the following is incorrect? (Solved)
1. direct search methods are useful when the optimization function is not differentiable
2. the gradient of f(x,y) is the a vector pointing in the direction of the steepest slope at that point
3. the hessian is the jacobian matrix of second-order partial derivatives of a function.
4. the second derivative of the optimization function is used to determine if we have reached an optimal point.
- d. the second derivative of the optimization function is used to determine if we have reached an optimal point.