 or TRANS = 'C', the leading
          N-by-M part of this array must contain the matrix A.

  LDA     INTEGER
          The leading dimension of array A.  LDA &gt;= MAX(1,l),
          where l is M when TRANS = 'N' and is N when TRANS = 'T' or
          TRANS = 'C'.

  X       (input/output) DOUBLE PRECISION array, dimension (LDX,N)
          On entry, if UPLO = 'U', the leading N-by-N upper
          triangular part of this array must contain the upper
          triangular part of the symmetric matrix X a