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Scilabヘルプ >> UMFPACK Interface

UMFPACK Interface

  • cond2spcomputes an approximation of the 2-norm condition number of a s.p.d. sparse matrix
  • condestspestimate the condition number of a sparse matrix
  • PlotSparseplot the pattern of non nul elements of a sparse matrix
  • ReadHBSparseread a Harwell-Boeing sparse format file
  • res_with_preccomputes the residual r = Ax-b with precision
  • taucs_chdelutility function used with taucs_chfact
  • taucs_chfactcholesky factorization of a sparse s.p.d. matrix
  • taucs_chgetretrieve the Cholesky factorization at the scilab level
  • taucs_chinfoget information on Cholesky factors
  • taucs_chsolvesolves a linear s.p.d. system A*X = B from Cholesky factors of the sparse A
  • umf_ludelutility function used with umf_lufact
  • umf_lufactlu factorization of a sparse matrix
  • umf_lugetretrieve lu factors at the Scilab level
  • umf_luinfoget information on LU factors
  • umf_lusolvesolve a linear sparse system given the LU factors
  • umfpacksolve sparse linear system
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