rs</B>
<PRE>
  N       (input) INTEGER
          The order of the matrix A.  N &gt;= 0.

  M       (input) INTEGER
          The order of the matrix B.  M &gt;= 0.

  A       (input) DOUBLE PRECISION array, dimension (LDA,N)
          The leading N-by-N part of this array must contain the
          coefficient matrix A of the equation.

  LDA     INTEGER
          The leading dimension of array A.  LDA &gt;= MAX(1,N).

  B       (input) DOUBLE PRECISION array, dimension (LDB,M)
          The leading M-by-M 