Transcription of generatingfunctionology - Penn Math
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GeneratingfunctionologyHerbert S. WilfDepartment of MathematicsUniversity of PennsylvaniaPhiladelphia, PennsylvaniaCopyright 1990 and 1994 byAcademic Press, rights re-served. This Internet Edition may be reproduced for any valid educationalpurpose of an institution of higher learning, in which case only the reason-able costs of reproduction may be charged. Reproduction for profit or forany commercial purposes is strictly book is about generating functions and some of their uses indiscrete mathematics. The subject is so vast that I have not attempted togive a comprehensive discussion. Instead I have tried only to communicatesome of the main functions are a bridge between discrete mathematics, onthe one hand, and continuous analysis (particularly complex variable the-ory) on the other.
ating functions can be simple and easy to handle even in cases where exact ... Generating functions can give stunningly quick deriva-tions of various probabilistic aspects of the problem that is repre-sented by your unknown sequence. (d) …
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