LAPACK
3.10.1
LAPACK: Linear Algebra PACKage

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Functions/Subroutines  
subroutine  zla_gbrfsx_extended (PREC_TYPE, TRANS_TYPE, N, KL, KU, NRHS, AB, LDAB, AFB, LDAFB, IPIV, COLEQU, C, B, LDB, Y, LDY, BERR_OUT, N_NORMS, ERR_BNDS_NORM, ERR_BNDS_COMP, RES, AYB, DY, Y_TAIL, RCOND, ITHRESH, RTHRESH, DZ_UB, IGNORE_CWISE, INFO) 
ZLA_GBRFSX_EXTENDED improves the computed solution to a system of linear equations for general banded matrices by performing extraprecise iterative refinement and provides error bounds and backward error estimates for the solution. More...  