Gradient Search Procedure - Search Direction Previous Next
We need to start at some initial trial solution, say , where . The gradient for this point is , so the (infinitesimal) change in  that maximizes the rate at which  increases is to move
from  (0, 0)  toward  (0, 0) + (28, 4) = (28, 4).
The equation for the line between (0, 0) and (28, 4) is
 ,
so  should be increased from 0.