HP MLIB User's Guide Vol. 2 7th Ed.

Chapter 9 LAPACK Auxiliary Subprograms 683
Compute norm of symmetric or Hermitian matrix SLANSY/DLANSY/CLANHE/CLANSY/ZLANHE//ZLANSY
matrix A, and the strictly lower triangular part of a is
not referenced.
If uplo = ’L’ or ’l’, the leading n-by-n lower triangular
part of a contains the lower triangular part of the
matrix A, and the strictly upper triangular part of a is
not referenced.
lda The leading dimension of array a in the calling
program unit. lda ≥ max(1,n).
Working
Storage
work,
rwork
Arrays used for work space. Not referenced unless
norm = ’1’ or ’I’ or ’i’ or ’O’ or ’o’.
Output anorm The function value is the value of the requested norm
of A.
Notes Actual character arguments in a subroutine call may be longer than the
corresponding dummy arguments. Therefore, readability of the CALL
statement may be improved by coding the norm argument as ’Frobenius’ for ’F’,
’Infinity-Norm’ for ’I’, ’One-norm’ or ’1-norm’ for ’O’, or ’Max-Element’ for ’M’.