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(mathematics) The best approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating.

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Padé approximant

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Source Word

Padé approximant

Noun

(mathematics) The "best" approximation of a function by a rational function of given order. Under this technique, the approximant's power series agrees with the power series of the function it is approximating.

Japanese Meaning

数学におけるパデ近似とは、与えられた次数の有理関数によって関数を最適に近似する方法を指します。具体的には、対象関数の冪級数展開と一致するような有理関数を見出す手法です。