prerex - 6.5.4-1 main

prerex is an editor for creating esthetically pleasing course prerequisite
charts using the TikZ LaTeX package.
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The editor supports add, remove, cut-and-paste, and edit operations on
diagram elements, and shifts of a list of specified elements or the
entire diagram. The edited diagram may be saved, re-processed, and viewed in
a PDF viewer, without exiting the editor.
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Course prerequisite charts allow students to easily determine which
prerequisites, corequisites and recommended prerequisites they need for a
given course and their time slots. Course prerequisite charts also highlight
the courses required by a degree.
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prerex is used by departments in several universities, including Queen's
University and Suffolk University.