Should we provide a Math.h?

I think that EulerAngles, Quaternion and any other math structure should be moved into a specific Math.h file.

I imagine that maintaining a Math.h file may quickly become a project on his own if we try to support all the possible mathematical constructs... maybe we should consider adopting an already existing library? Or extract a subset of an existing library?

首先定位现有的 EulerAngles 和 Quaternion 定义，并检查提议的 Math.h 将如何适配 ArduinoCore-API。该 issue 未指定文件、测试、首选库或验收标准，因此需要在实现之前明确范围和 Definition of Done。

由索引模型根据 Issue 内容生成。