From d5c30c90bdecf38da1064e2ed52583634573e741 Mon Sep 17 00:00:00 2001 From: julie Date: Tue, 1 Nov 2011 22:02:31 +0000 Subject: Never say never... --- SRC/dgges.f | 9 +++------ 1 file changed, 3 insertions(+), 6 deletions(-) (limited to 'SRC/dgges.f') diff --git a/SRC/dgges.f b/SRC/dgges.f index bc2c69ae..44b8f6b1 100644 --- a/SRC/dgges.f +++ b/SRC/dgges.f @@ -116,8 +116,7 @@ *> SELCTG(ALPHAR(j),ALPHAI(j),BETA(j)) is true; i.e. if either *> one of a complex conjugate pair of eigenvalues is selected, *> then both complex eigenvalues are selected. -*> \endverbatim -*> \verbatim +*> *> Note that in the ill-conditioned case, a selected complex *> eigenvalue may no longer satisfy SELCTG(ALPHAR(j),ALPHAI(j), *> BETA(j)) = .TRUE. after ordering. INFO is to be set to N+2 @@ -189,8 +188,7 @@ *> If ALPHAI(j) is zero, then the j-th eigenvalue is real; if *> positive, then the j-th and (j+1)-st eigenvalues are a *> complex conjugate pair, with ALPHAI(j+1) negative. -*> \endverbatim -*> \verbatim +*> *> Note: the quotients ALPHAR(j)/BETA(j) and ALPHAI(j)/BETA(j) *> may easily over- or underflow, and BETA(j) may even be zero. *> Thus, the user should avoid naively computing the ratio. @@ -239,8 +237,7 @@ *> The dimension of the array WORK. *> If N = 0, LWORK >= 1, else LWORK >= 8*N+16. *> For good performance , LWORK must generally be larger. -*> \endverbatim -*> \verbatim +*> *> If LWORK = -1, then a workspace query is assumed; the routine *> only calculates the optimal size of the WORK array, returns *> this value as the first entry of the WORK array, and no error -- cgit v1.2.3