A review of two-dimensional programming languages

Authors:
Mark B. Wells
Affiliations:
University of California, Los Alamos Scientific Laboratory, Los Alamos, New Mexico
Venue:
Proceedings of the symposium on Two-dimensional man-machine communication
Year:
1972

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Abstract

Everyday mathematical language, as it appears on the printed page for instance, non-trivially makes use of two dimensions. This paper discusses various technical aspects of programming languages which utilize such natural symbolism. First, some terminology which is and can be useful in describing these systems is presented. Then, the man-machine interface in relation to two-dimensional languages in general is examined. This is followed by an historical survey of particular languages, including a brief description of their two-dimensional characteristics. Finally, a review of the analysis problem for such languages is given.