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rational expression 【數學】有理式。

rationale

In theory of approximations , the classic methods of polynomial approximation for rational expression are various interpolations and operator approximations , such as lagrange interpolation , hermite interpolation and bernstein polynomial approximation 在逼近論中,用多項式逼近有理式的經典的方法是各種插值與算子逼近方法,如lagrange插值、 hermite插值和bernstein多項式逼近等。