formal power series

/F AO1 R M AH0 L P AW0 ER0 S IH0 R IY0 Z/
noun
  1. 1

    (mathematics, algebra) Any finite or infinite series of the form a_0+a_1x+a_2x²…=∑ᵢa_ixⁱ, where the aᵢ are numbers, but it is understood that no value is assigned to x.

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