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man pages->IRIX man pages -> complib/CBABK2 (3)
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### Contents

```
_CBABK2(3F)							   _CBABK2(3F)

```

### NAME[Toc][Back]

```     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.

```

### SYNOPSYS[Toc][Back]

```	  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)

```

### DESCRIPTION[Toc][Back]

```     On	INPUT

NM	must be	set to the row dimension of two-dimensional 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

PPPPaaaaggggeeee 1111```
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