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interpolations

/ɪnˌtɜːrpəˈleɪʃənz/
noun

補間ほかん

解説 Definition

補間、または欠落値を推定する数学的過程。テキストへの挿入も指します。

Interpolations are added words, ideas, or pieces of information placed into a text, speech, or set of data. The word is often used in writing, editing, mathematics, and computing when something is inserted between existing parts. It can be neutral in technical contexts, but in literature it may suggest that the added part was not original.

覚え方のコツ Memory Tip

動詞 interpolate(補間する)に接尾辞 -ion(名詞化)と -s(複数形)が付いた形。語幹は inter-(間に)+ polate(磨く・整える)で、「間に手を加えて埋める」が原義。数学やデータ分析で、欠落値を推定する操作を指す。共通接頭辞 inter- のイメージを掴めば類推可能。なお、形が似ている interpretation(解釈)と混同しやすいので注意したい。頻出コロケーションは linear interpolation(線形補間)、data interpolation(データの補間)など。

Start with the verb `interpolate`, then add `-ion` for the noun and `-s` for the plural. The key prefix is `inter-`, which means "between," so think of putting something between two known points. Be careful not to confuse it with `interpretation`, which looks similar but belongs to a different word family.

例文

Interpolations in the manuscript raised questions.

原稿の補間は質問を引き起こしました。

Mathematical interpolations estimate missing values.

数学的補間は欠落値を推定します。

The interpolations seemed questionable.

その補間は疑わしいように見えました。

interpolations の類義語・関連語

interpolations の語源・成り立ち Etymology

ラテン語 interpolare(改変する・挿入する)に由来。inter-(間に)+ polare(磨く・整える)の構成で、「間に手を加える」が原義。関連語は interpolate(補間する)、extrapolate(外挿する)。数学では既知の値の「間を埋める」操作を指し、語源の「間に挿入する」がそのまま活きている。

Interpolations comes from Latin interpolare, meaning to alter, polish up, or insert something in between. It includes inter- "between," and the word came to suggest changing a text or adding material in the middle. From that basic idea of inserting between known parts, English developed the sense of filling gaps, including in mathematics. It is related to interpolate and, by contrast in form, extrapolate.

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