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정의
두 알려진 데이터 점 사이의 값을 두 점 사이의 함수적 관계(가장 흔히 선형)를 가정하여 추정하는 방법.
설명
If water boils at 100°C at sea level (0 m) and at 93.3°C at 2,000 m altitude, linear interpolation gives a boiling point of 96.65°C at 1,000 m. Lookup tables in engineering handbooks use interpolation for intermediate values. Linear interpolation introduces errors when the true relationship is non-linear — at extreme altitudes, a quadratic fit is more accurate.
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