テイラー展開てーらーてんかいalso: テーラーてんかいMeanings1nounTaylor expansionmathematicsMathematical term for expressing a function as an infinite sum of terms calculated from its derivatives at a single point.関かん数すうをテイラー展てん開かいして近きん似じ値ちを求もとめる。Approximate the value by Taylor-expanding the function.