Agree of disagree

Suppose Field[x, y] = {m[x, y], n[x, y]} has the properties that -> all the singularities of Field[x, y] are inside C1 , -> ( -n[x, y] dx + m[x, y] dy > 0 , and am an -> divField[x, y] = D[m[x, y], x] + D[n[x, y], y] = + > 0 ax ay at all points {x, y} between C1 and C2 . This tells you that all points {x, y} between C1 and C2 are sources for the flow corresponding to Field[x, y]. As a result, ( - nix, y]dx+ m[x, y]dy