"""Vector field classes in different coordinate systems.

These modules provide a variety of vector field classes.

Modules
-------
cartesianvectorfield.py
cartesianvectorfieldvalue.py
cylindricalvectorfield.py
cylindricalvectorfieldvalue.py
differentiablescalarfieldij.py
differentiablevectorfield.py
quadraticapproximationdifferentiablevectorfield.py
sphericalvectorfield.py
sphericalvectorfieldvalue.py
vectorfield.py
vectorfieldvalue.py

Packages
--------
tests
"""
