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LAPACK version 3.0
zlanhe(3)

PURPOSE
  ZLANHE - return 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 matrix A

SYNTAX
  DOUBLE PRECISION FUNCTION ZLANHE( NORM, UPLO, N, A, LDA, WORK )

      CHARACTER	   NORM, UPLO

      INTEGER	   LDA, N

      DOUBLE	   PRECISION WORK( * )

      COMPLEX*16   A( LDA, * )

DESCRIPTION
  ZLANHE 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 matrix A.

DESCRIPTION
  ZLANHE returns the value

     ZLANHE = ( 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	 matrix norm.

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

  UPLO	  (input) CHARACTER*1
	  Specifies whether the upper or lower triangular part of the
	  hermitian matrix A is to be referenced.  = 'U':  Upper triangular
	  part of A is referenced
	  = 'L':  Lower triangular part of A is referenced

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

  A	  (input) COMPLEX*16 array, dimension (LDA,N)
	  The hermitian matrix A.  If UPLO = 'U', the leading n by n upper
	  triangular part of A contains the upper triangular part of the
	  matrix A, and the strictly lower triangular part of A is not
	  referenced.  If UPLO = '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. Note
	  that the imaginary parts of the diagonal elements need not be set
	  and are assumed to be zero.

  LDA	  (input) INTEGER
	  The leading dimension of the array A.	 LDA >= max(N,1).

  WORK	  (workspace) DOUBLE PRECISION array, dimension (LWORK),
	  where LWORK >= N when NORM = 'I' or '1' or 'O'; otherwise, WORK is
	  not referenced.