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单词 asymptotic expansion
释义
asymptotic expansion

Computer
  • A series

    A0+A1/z+A2/z2++An/zn+,

    that may either converge for large values of |z| or diverge for all values of z, is called an asymptotic expansion of the function F(z), valid in a given range of values of arg z, if, for every fixed value of n, the expression

    zn(F(z)A0A1/zA2/z2An/zn)

    tends to zero as | z| → ∞, while arg z remains in the given range.


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