Vector Field Plotting Package
As of Version 7.0, vector field plotting functionality is built into the Wolfram Language. »
VectorFieldPlot — plot a vector field from a vector-valued function
VectorFieldPlot3D — plot a vector field in 3D
ListVectorFieldPlot — plot a vector field from an array of vectors
ListVectorFieldPlot3D — plot a vector field in 3D
GradientFieldPlot — plot the gradient field for a function
HamiltonianFieldPlot — plot the Hamiltonian field for a function
PolyaFieldPlot — plot the Polya field for a complex function
GradientFieldPlot3D — plot the gradient field for a function in 3D