Find the clockwise circulation of the vector field F given in Example 2-14 around a square...

Find the clockwise circulation of the vector field F given in Example 2-14 around a square path in the xy-plane centered at the origin and having four units on each side (−2 ⩽ x ⩽ 2 and −2 ⩽ y ⩽ 2).

Example