Abstract We discretise a tangential tensor field equation using surface-finite element approach with penalisation term to ensure almost tangentiality. It is natural measure the quality of such discretisation intrinsically, i.e., examine convergence behaviour in contrast normal behaviour. show optimal-order respect quantities particular for an isogeometric that based only on geometric informatio...

T o debug your programs, it’s helpful to experiment with the simplest test problem and a small number of mesh points. Look ahead to Problem 6 for sample problems. Problem 2 uses the Matlab function spdiags to construct a sparse matrix. If you have never used sparse matrices in Matlab, print the matrix A to see that its data structure contains the row index, column index, and value for each nonz...