17.1 Vector Fields

<< Graphics`PlotField`

PlotVectorField[{x/5, y/5}, {x, -2, 2}, {y, -2, 2}]

PlotVectorField[{-y, x}/(Sqrt[(x^2) + (y^2)]), {x, -2, 
        2}, {y, -2, 2}]