any sugestion
 

Dear all
I have matrix "A" defined in (0,m)(0,m), I want to create another matrix "B" with same data as A but in different range ,i.e., (-1,m+1)(-1,m+1). For this I wrote the following:
do j=0,m
do i=0,m
B(I,J)=A(I,J)
end do
enddo

do j=0,m
B(-1,J)=A(m,J)
B(-1,m+1)=A(m,0)
enddo
do i=0,m
B(i,-1)=A(i,m)
B(m+1,-1)=A(0,m)
enddo
B(-1,-1)=A(m,m)
B(m+1,-1)=A(0,m)
B(-1,m+1)=A(m,0)
B(m+1,m+1)=A(0,0)
Are these new coordinates are right or not?

Thank you a lot.:o
Bird