12(i^+j^)\frac{1}{2}(\hat{\mathrm{i}}+\hat{\mathrm{j}})21(i^+j^)
12(i^+j^)\frac{1}{\sqrt{2}}(\hat{i}+\hat{j})21(i^+j^)
2(i^+j^)2(\hat{i}+\hat{j})2(i^+j^)
32(i^+j^)\frac{3}{2}(\hat{i}+\hat{j})23(i^+j^)