fem_basis_t4_display_test, an Octave code which calls fem_basis_t4_display(), which reads data defining a T4 mesh of 4-node triangles, and displays the basis function associated with any node in the mesh.
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fem_basis_t4_display, an Octave code which displays a basis function associated with a 4-node t4 mesh.
RECTANGLE is a simple 5 by 4 mesh of 44 nodes and 24 elements.