LaLinearSolve()

void LaLinearSolve ( LaTridiagFactDouble &  AF, LaGenMatDouble &  X, LaGenMatDouble &  B  )

inline

Definition at line 123 of file trfd.h.

References dgttrs(), LaTridiagFactDouble::diag(), F77NAME, LaTridiagFactDouble::pivot(), and LaTridiagFactDouble::size().

{
    char trans = 'N';
    integer N = AF.size(), nrhs = X.size(1), ldb = B.size(0), info = 0;
    double *DL = &AF.diag(-1)(0), *D = &AF.diag(0)(0),
         *DU =  &AF.diag(1)(0), *DU2 = &AF.diag(2)(0);

    X.inject(B);
    F77NAME(dgttrs)(&trans, &N, &nrhs, DL, D, DU, DU2, &(AF.pivot()(0)),
                    &X(0,0), &ldb, &info);
}

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