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The following capabilities are available in the MODULEF library:
and about 55 elements for elasticity for isotropic and anisotropic materials:
and 3 elements for magnetics.
Cholesky, Crout or Gauss factorization is used depending on the nature of the system matrix. The matrix storing technique is a skyline storage in main or secondary memory.
Symmetric or non-symmetric linear systems are solved iteratively using a choice of conjugate gradient methods with or without preconditioning, or relaxation. Compact storage is used to store the matrices (only non-zero entries are stored).