3D Vector Field Grapher
Type in the corresponding fields the components P(x,y,z), Q(x,y,z) and R(x,y,z) of your vector field F(x,y,z)=(P(x,y,z),Q(x,y,z),R(x,y,z)).
Use slider n in order to modify the density of the arrows.
Use slider scale in order to modify the scale of the arrows.