Y = psi(x1,x2,x3) X1(f) = x1 f X2(f) = x2 f X3(f) = x3 f P1(f) = -i hbar d(f,x1) P2(f) = -i hbar d(f,x2) P3(f) = -i hbar d(f,x3) L1(f) = X2(P3(f)) - X3(P2(f)) L2(f) = X3(P1(f)) - X1(P3(f)) L3(f) = X1(P2(f)) - X2(P1(f)) PP(f) = P1(P1(f)) + P2(P2(f)) + P3(P3(f)) LL(f) = L1(L1(f)) + L2(L2(f)) + L3(L3(f)) PXL1(f) = P2(L3(f)) - P3(L2(f)) PXL2(f) = P3(L1(f)) - P1(L3(f)) PXL3(f) = P1(L2(f)) - P2(L1(f)) LXP1(f) = L2(P3(f)) - L3(P2(f)) LXP2(f) = L3(P1(f)) - L1(P3(f)) LXP3(f) = L1(P2(f)) - L2(P1(f)) Run