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docs/api/math/quaternion/normalized.md

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+# Quaternion::Normalized / Normalize
+
+## 实例方法
+
+```cpp
+Quaternion Normalized() const
+```
+
+返回当前四元数的归一化副本（不修改原四元数）。
+
+**返回：** `Quaternion` - 归一化后的四元数副本
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Quaternion unit = quat.Normalized();  // quat 保持不变
+```
+
+## 静态方法
+
+```cpp
+static Quaternion Normalize(const Quaternion& q)
+```
+
+归一化四元数。
+
+**参数：**
+- `q` - 要归一化的四元数
+
+**返回：** `Quaternion` - 归一化后的四元数
+
+**复杂度：** O(1)
+
+**示例：**
+
+```cpp
+Quaternion unit = Quaternion::Normalize(quat);
+```