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----- Original Message ----- From: "frank_ouyang" <[log in to unmask]> To: <[log in to unmask]> Sent: Wednesday, January 16, 2002 2:13 PM Subject: how can I deal with dynamic array? > > subroutine BB(A,m,n) > real A(*,*) > ^^^^^^? Corret? Only the final dimension may be specified with an *. That is a Fortran 77 feature called assumed-size array that has been superseded by the Fortran 90 feature called assumed-shape array. Here your array definition in BB must be given as real A(:, :) and the feature requires an explicit interface, so BB is best made an internal subroutine or placed in a module that is USEd by the calling procedure (see also "Fortran 90/95 Explained", Section 6.3). You no longer need pass n and m as aruments. Hope that helps, Mike Metcalf