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Related to Taylor's series: Maclaurin series
(Mathematics) maths an infinite sum giving the value of a function f(z) in the neighbourhood of a point a in terms of the derivatives of the function evaluated at a. Under certain conditions, the series has the form f(z) = f(a) + [f′(a)(z – a)]/1! + [f″(a)(z – a)2]/2! + …. See also Maclaurin's series
[C18: named after Brook Taylor (1685–1731), English mathematician]