...For example , a table of function values, such as a table of logarithms or a table of trigonometric functions, gives the values f0, f1, f2, ... of the function f(x) for discrete values of x, x0 , x1 , x2 , ... , so it becomes necessary to find the value of f ( x ) for intermediate values of x that are not given in the table. A similar problem also occurs when estimating values at points that were not measured from measured values obtained in an experiment or observation. In this way, a method of approximating intermediate function values from known function values is called an interpolation method (or inverse interpolation method). ... *Some of the terminology explanations that mention "Everett's interpolation formula" are listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…例えば対数表や三角関数表のような関数値の表は,xのとびとびの値x0,x1,x2,……に対する関数f(x)の値f0,f1,f2,……が与えられているから,表に与えられていない中間の値xに対するf(x)の値を求める必要が起こる。また,実験や観測で得られた測定値から,測定しなかった点での値を推定する場合も,同様な問題が起こる。このように,知られた関数値から,それらの中間の関数値を近似的に求める方法を補間法(または内挿法)という。… ※「エベレットの補間公式」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
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