This book describes a powerful language for multidimensional declarative programming called Lucid. Lucid has evolved considerably in the past ten years. The main catalyst for this metamorphosis was the discovery that Lucid is based on intensional logic, one commonly used in studying natural languages. Intensionality, and more specifically indexicality, has enabled Lucid to implicitly express multidimensional objects that change, a fundamental capability with several consequences which are explored in this book. The author covers a broad range of topics, from foundations to applications, and from implementations to implications. The role of intensional logic in Lucid as well as its consequences for programming in general is discussed. The syntax and mathematical semantics of the language are given and its ability to be used as a formal system for transformation and verification is presented. The use of Lucid in both multidimensional applications programming and software systems construction (such as a parallel programming system and a visual programming system) is described. A novel model of multidimensional computation--education--is described along with its serendipitous practical benefits for harnessing parallelism and tolerating faults. As the only volume that reflects the advances over the past decade, this work will be of great interest to researchers and advanced students involved with declarative language systems and programming.

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Edward A. Ashcroft and Anthony A. Faustini are both at Arizona State University. Rangaswamy Jagannathan is at SRI International. William W. Wadge is in the Department of Computer Science, University of Victoria.

"This book offers a natural manner to make multidimensional declarative programming." --Zentrallblatt für Mathematik und ihre Grenzgebiete

"Useful for its novel approach to many programming issues, considered stabilised by most developers, as well as for its insight into the education model and engine, and the advantages of Lucid for program verification, fault tolerance and parallelism." --Natural Language Engineering