_CBABK2(3F) _CBABK2(3F)
CBABK2, SCBABK2  EISPACK routine. This subroutine forms the
eigenvectors of a COMPLEX GENERAL matrix by back transforming those of
the corresponding balanced matrix determined by CBAL.
subroutine cbabk2(nm, n, low, igh, scale, m, zr, zi)
integer nm, n, low, igh, m
double precision scale(n), zr(nm,m), zi(nm,m)
subroutine scbabk2(nm, n, low, igh, scale, m, zr, zi)
integer nm, n, low, igh, m
real scale(n), zr(nm,m), zi(nm,m)
On INPUT
NM must be set to the row dimension of twodimensional array parameters
as declared in the calling program dimension statement.
N is the order of the matrix.
LOW and IGH are integers determined by CBAL.
SCALE contains information determining the permutations and scaling
factors used by CBAL.
M is the number of eigenvectors to be back transformed.
ZR and ZI contain the real and imaginary parts, respectively, of the
eigenvectors to be back transformed in their first M columns. On OUTPUT
ZR and ZI contain the real and imaginary parts, respectively, of the
transformed eigenvectors in their first M columns. Questions and
comments should be directed to B. S. Garbow, APPLIED MATHEMATICS
DIVISION, ARGONNE NATIONAL LABORATORY
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