Update API documentation and remove obsolete plan files

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2026-03-21 15:55:04 +08:00
parent 7a6cd412c8
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# Vector4::operator-
```cpp
Vector4 operator-() const
```
一元负号运算符,返回当前向量的负向量。
**返回:** `Vector4` - 每个分量取负的新向量
**线程安全:**
**复杂度:** O(1)
**示例:**
```cpp
Vector4 v(1.0f, 2.0f, 3.0f, 4.0f);
Vector4 neg = -v; // (-1.0f, -2.0f, -3.0f, -4.0f)
```
## 相关文档
- [Vector4 总览](vector4.md)
- [`operator+`](operator-add.md) - 加法
- [`operator-`](operator-sub.md) - 二元减法