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The Computer Journal 1979 22(2):127-131; doi:10.1093/comjnl/22.2.127
© 1979 by British Computer Society
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A new symbolic integration system in reduce*

S. J. Harrington §

Department of Mathematics, State University College of Brockport, Brockport, New York, USA

A new integration system, employing both algorithmic and pattern match integration schemes is presented. The organisation of the system differs from that of earlier programs in its emphasis on the algorithmic approach to integration, its modularity and its ease of revision. The new Norman-Risch algorithm and its implementation at the University of Cambridge are employed, supplemented by a powerful collection of simplification and transformation rules. The facility for user defined integrals and functions is also included. The program is both fast and powerful, and can be easily modified to incorporate anticipated developments in symbolic integration.

Received November 1977. revised May 1978.

* Work supported in part by the National Science Foundation under Grant No. MCS 76,15035 and by the Burroughs Corporation.

§ Now at Department of Mathematics, State University College at Brockport, Brockport, New York, NY 14420, USA

University of Utah, Salt Lake City, Utah 84112, USA


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