This doesn't look right at all to me. If and then and . The integral is
. . . . . .
That looks correct, except that if the path goes from (3,3) to (0,0) then the integral should be rather than , giving the answer +3 instead of –3.
This doesn't look right at all to me. If and then and . The integral is
. . . . . .
That looks correct, except that if the path goes from (3,3) to (0,0) then the integral should be rather than , giving the answer +3 instead of –3.