Update API documentation and remove obsolete plan files

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2026-03-21 15:55:04 +08:00
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# Vector2::operator==
```cpp
bool operator==(const Vector2& other) const
```
判断两个向量是否相等。使用 EPSILON 进行浮点比较。
**参数:**
- `other` - 要比较的向量
**返回:** `bool` - 如果所有分量差的绝对值都小于 EPSILON 则返回 true
**线程安全:**
**复杂度:** O(1)
**示例:**
```cpp
Vector2 a(1.0f, 2.0f);
Vector2 b(1.0f, 2.0f);
bool equal = (a == b); // true
```
## 相关文档
- [Vector2 总览](vector2.md)
- [`operator!=`](operator-neq.md) - 不等比较