Is it possible to make an entry in Q[i,j] equal to a entry in U[i,j]?
I have to have the two functions separately for each matrix though
just like my code above
i.e.
def U(N,M):
...
...
...
return U
def Q(N,M)
...
...
...
Q[i,j]=U(N,M)
return Q
Kind Regards
Chappman
On Dec 3, 4:26 am, "D. S. McNeil" <dsm...@gmail.com> wrote:
> > def U(N,M):
> > U=matrix(ZZ,N*M)
> > for i in range(N*M):
> > for j in range(N*M):
> > U[i,j]=1
> > return U
> > def Q(N,M):
> > Q=matrix(ZZ,N*M)
> > for i in range(N*M):
> > for j in range(N*M):
> > Q[i,j]=U(N,M)
> > return Q
>
> U(N,M) is a function which returns a matrix. The line Q[i,j]=U(N,M)
> attempts to set the (i,j)-th entry of the Q matrix, defined over ZZ,
> to an NxM matrix, which isn't going to work. (Hence the "cannot
> coerce a matrix to an integer" error message -- it's trying to fit
> U(N,M) into an entry of Q, and it can't figure out how to do it.)
>
> BTW, you might also be interested in the command ones_matrix:
>
> sage: ones_matrix(ZZ,3,4)
> [1 1 1 1]
> [1 1 1 1]
> [1 1 1 1]
>
> Doug
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