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CLANHT(1)	    LAPACK auxiliary routine (version 3.2)	     CLANHT(1)

NAME
       CLANHT  -  returns the value of the one norm, or the Frobenius norm, or
       the infinity norm, or the element of largest absolute value of  a  com‐
       plex Hermitian tridiagonal matrix A

SYNOPSIS
       REAL FUNCTION CLANHT( NORM, N, D, E )

	   CHARACTER NORM

	   INTEGER   N

	   REAL	     D( * )

	   COMPLEX   E( * )

PURPOSE
       CLANHT	returns	 the value of the one norm,  or the Frobenius norm, or
       the  infinity norm,  or the  element of	largest absolute value	 of  a
       complex Hermitian tridiagonal matrix A.

DESCRIPTION
       CLANHT returns the value
	  CLANHT = ( max(abs(A(i,j))), NORM = 'M' or 'm'
		   (
		   ( norm1(A),	       NORM = '1', 'O' or 'o'
		   (
		   ( normI(A),	       NORM = 'I' or 'i'
		   (
		   (  normF(A),		 NORM  =  'F',	'f',  'E' or 'e' where
       norm1  denotes the  one norm of a matrix (maximum  column  sum),	 normI
       denotes	the   infinity	norm  of a matrix  (maximum row sum) and normF
       denotes the  Frobenius  norm  of	 a  matrix  (square  root  of  sum  of
       squares).   Note	 that	max(abs(A(i,j)))   is  not a consistent matrix
       norm.

ARGUMENTS
       NORM    (input) CHARACTER*1
	       Specifies the value to  be  returned  in	 CLANHT	 as  described
	       above.

       N       (input) INTEGER
	       The  order of the matrix A.  N >= 0.  When N = 0, CLANHT is set
	       to zero.

       D       (input) REAL array, dimension (N)
	       The diagonal elements of A.

       E       (input) COMPLEX array, dimension (N-1)
	       The (n-1) sub-diagonal or super-diagonal elements of A.

 LAPACK auxiliary routine (versioNovember 2008			     CLANHT(1)
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