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[수학체험실] 야구에서 찾은 기하학, 사인 곡선과 코사인 곡선
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야구 중계에서 투수가 던진 공의 궤적과 위치 정보는 야구장에 설치된 3대의 카메라와 중앙 컴퓨터 시스템이 연결된 투구 추적 시스템을 통해 얻습니다. 이때 공의 운동을 파악하기 위해 ‘푸리에 변환’을 사용하죠. 이 변환에 꼭 필요한 사인 곡선과 코사인 곡선을 만들면서 그 개념을 이해해봅시다.

 

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