校对:(虚位以待)
Polynomial.
fromroots
(roots, domain=[], window=None)[source]返回具有指定根的序列实例。
Returns a series representing the product (x - r[0])*(x - r[1])*...*(x - r[n-1])
, where r
is a list of roots.
参数: | 根:array_like
domain:{[],None,array_like},可选
窗口:{None,array_like},可选
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返回: | new_series:series
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