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A “tiny tool” for matrix inversion in a COSTOC environment

  • Paul Gillard
CAL Tools
Part of the Lecture Notes in Computer Science book series (LNCS, volume 438)

Abstract

In many of the CAI lessons in use today, there is a strong emphasis on user interaction and the provision of immediate feedback from the lesson. This paper describes an example of the use of a “tiny tool” — a small language designed specifically to provide a vehicle for user interaction with the exercises in a COSTOC CAI lesson on matrix inversion. Such a language can be implemented as a “natural” user interface, if carefully designed; for some applications it is a more “natural” interface than the ubiquitous “menu driven” and “hypertext” interfaces. For this type of mathematical problem, in particular, it can allow the student to interactively solve matrix inversion problems, in the context of the CAI lesson, permitting immediate feedback. Moreover, it affords the designer of the lesson an opportunity to implement “non-trivial” exercises in a relatively simple way.

Keywords

Matrix Inversion Semantic Action Lesson System Lexical Analyser Present Operation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag Berlin Heidelberg 1990

Authors and Affiliations

  • Paul Gillard
    • 1
  1. 1.Department of Computer ScienceMemorial University of Newfoundland St. John's, Nfld.Canada

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