IntersectSubspaces(S)

Initialize a 4-dimensional manifold M with coordinates [x, y, z, w].

Example 1.

Find the intersection of the three 3 dimensional subspaces spanned by A1, A2, A3.

Example 2.

Find the intersection of the subspaces of 2-forms spanned by B1 and B2.  Check the result using the GetComponents command.

The command GetComponents returns the components of the 2-form in C with respect to the 2-forms in B1 and B2.  This proves that the 2-form in C does indeed belong to the intersection of the spans of B1 and B2.

DifferentialGeometry, DGbasis, GetComponents