目录1. Haversine公式（中等精度，推荐通用场景）2. 球面余弦定理（简单但精度较低）3. Vincenty公式（高精度，适用于复杂模型）4. android内置方法（仅限Android开发）5. 极地坐标系近似法（快速但低精度）6.方法对
I want to find whether a point lies inside a rectangle or not. The rectangle can be oriented in any way, and need not be axis aligned.
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