Maxima Function
cartan -
The exterior calculus of differential forms is a basic tool
of differential geometry developed by Elie Cartan and has important
applications in the theory of partial differential equations.
The cartan
package
implements the functions ext_diff
and lie_diff
,
along with the operators ~
(wedge product) and |
(contraction
of a form with a vector.)
Type demo (tensor)
to see a brief
description of these commands along with examples.
cartan
was implemented by F.B. Estabrook and H.D. Wahlquist.