%% Rumintegraler

syms x y z

int(int(int(x*y + y*z, z, 0, 1), y, 2, 3), x, -1, 1)

%% 

m = int(int(int(z, z, 0, 6-3*x-2*y), y, 0, 3-3/2*x), x, 0, 2)

%%

xb = int(int(int(x*z, z, 0, 6-3*x-2*y), y, 0, 3-3/2*x), x, 0, 2) / m
yb = int(int(int(y*z, z, 0, 6-3*x-2*y), y, 0, 3-3/2*x), x, 0, 2) / m
zb = int(int(int(z^2, z, 0, 6-3*x-2*y), y, 0, 3-3/2*x), x, 0, 2) / m
