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<B>ZEILBERG</B> _ _ _ _ _ _ _ _ _ _ _ _ <B>package</B><P>
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Authors: Gregor St"olting and Wolfram Koepf
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This package is a careful implementation of the Gosper and Zeilberger
algorithms for indefinite and definite summation of hypergeometric terms,
respectively. Extensions of these algorithms are also included that are
valid for ratios of products of powers,
factorials, gamma function
terms, binomial coefficients, and shifted factorials that are
rational-linear in their arguments.
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