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# Expert Driver Routines for Linear Equations

• CALL LA_GESVX ( A, B, X, AF=af, IPIV=ipiv, FACT=fact, TRANS=trans, &
EQUED=equed, R=r, C=c, FERR=ferr, BERR=berr, &
RCOND=rcond, RPVGRW=rpvgrw, INFO=info )
Solves a general system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_GBSVX ( AB, B, X, KL=kl, ABF=abf, IPIV=ipiv, FACT=fact, &
TRANS=trans, EQUED=equed, R=r, C=c, FERR=ferr, &
BERR=berr, RCOND=rcond, RPVGRW=rpvgrv, INFO=info)
Solves a general band system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_GTSVX ( DL, D, DU, B, X, DLF=dlf, DF=df, DUF=duf, DU2=du2, &
IPIV=ipiv, FACT=fact, TRANS=trans, FERR=ferr, BERR=berr, &
RCOND=rcond, INFO=info)
Solves a general tridiagonal system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_POSVX ( A, B, X, UPLO=uplo, AF=af, FACT=fact, EQUED=equed, &
S=s, FERR=ferr, BERR=berr, RCOND=rcond, INFO=info )
Solves a symmetric/Hermitian positive definite system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_PPSVX ( AP, B, X, UPLO=uplo, AFP=afp, FACT=fact, EQUED=equed, &
S=s, FERR=ferr, BERR=berr, RCOND=rcond, INFO=info )
Solves a symmetric/Hermitian positive definite (packed storage) system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_PBSVX (AB, B, X, UPLO=uplo, AFB=afb, FACT=fact, EQUED=equed, &
S=s, FERR=ferr, BERR=berr, RCOND=rcond, INFO=info )
Solves a symmetric/Hermitian positive definite band system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_PTSVX ( D, E, B, X, DF=df, EF=ef, FACT=fact, FERR=ferr, BERR=berr, &
RCOND=rcond, INFO=info )
Solves a symmetric/Hermitian positive definite tridiagonal system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_SYSVX / LA_HESVX ( A, B, X, UPLO=uplo, AF=af, IPIV=ipiv, &
FACT=fact, FERR=ferr, BERR=berr, RCOND=rcond, INFO=infp )
Solves a symmetric/Hermitian/complex indefinite system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.
• CALL LA_SPSVX / LA_HPSVX ( AP, B, X, UPLO=uplo, AFP=afp, IPIV=ipiv, &
FACT=fact, FERR=ferr, BERR=berr, RCOND=rcond, INFO=info )
Solves a symmetric/Hermitian/complex indefinite (packed storage) system of linear equations AX = B. Error bounds on the solution and a condition estimate are also provided.

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Minka Marinova 2000-09-07