3d to 2d matrix

I need to convert this "u" 3d matrix in a 2d numerical matrix, without having to cut and paste number by number in a new one, just like the "u2" example.

Thank you for any help!

Answer 1

[Joseph Cheng]

take a look at the function squeeze()

for ind = 1:3
    val(1,1,ind)=-ind;
end
disp(val)

(:,:,1) =

    -1


(:,:,2) =

    -2


(:,:,3) =

    -3

u2 = squeeze(val);
disp(u2)

    -1
    -2
    -3

[Paulo Eduardo Beiral]

Thank you!

[Joseph Cheng]

if the starting matrix is a bit more complicated you can also use reshape() as well