您要查找的是不是：
- 加权L2范数weighted L2 norm
- 加权L2模weighted L2 norm
- 数to count
- 加权L2-模估计weighted L2-norm
- 范model
- 范数normal number
- 加权范数Weighted norm
- L2诱导范数L2-induced norm
- ｐ次幂范数pth power norm
- ｐ加性范数p-additive norm
- 半范数seminorm
- 抽象范数abstract norm
- 整范数integral norm
- 重范数double-norm
- 拟范数quasi norm
- 准范数quasi-norm
- 主范数principal norm
- 超范数hypernorm
- 谱范数spectral norm
- 强范数strong norm
