In mathematics, the regular part of a Laurent series consists of the series of terms with positive powers.[1] That is, if

then the regular part of this Laurent series is

In contrast, the series of terms with negative powers is the principal part.[1]

References

  1. 1 2 Jeffrey, Alan (2005), Complex Analysis and Applications (2nd ed.), CRC Press, p. 256, ISBN 9781584885535.


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