Oneinterpretationofafunctionw$=$ f$($z$)=$u$($x$,$y$)+$iv$($x$,$y$)$isthatofavectorfieldin the domain of definition of f $.$ The function assigns a vector w$,$ with components u$($x$,$ y$)$ and v$($x$,$ y$),$ to each point z at which it is defined. Indicate graphically the vector fields represented by