# Quaternion::Normalized

```cpp
Quaternion Normalized() const
Quaternion Normalize(const Quaternion& q)
```

归一化四元数。

**返回：** `Quaternion` - 归一化后的四元数

**复杂度：** O(1)

**示例：**

```cpp
Quaternion unit = quat.Normalized();
Quaternion unit2 = Quaternion::Normalize(quat);
```