单词	power series
释义	Power Series An infinite series with increasing powers (exponents) of a variable. Like this: a0 + a1x + a2x2 + a3x3 + ... Example: the cosine function is: cos(x) = 1 − x2/2! + x4/4! − ...
随便看	operation operator opportunity cost opposite numbers opposite side or order of magnitude order of operations ordered pair ordering ordinal number ordinary differential equation ordinate origin origin symmetry orthocenter orthogonal oscillating series ounce outcome outlier oval ovoid pair palindrome

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