A review of two-dimensional programming languages

@inproceedings{Wells1972ARO,
  title={A review of two-dimensional programming languages},
  author={Mark B. Wells},
  year={1972}
}
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… CONTINUE READING