 A library to make it easier to handle
mathematical concepts in authoring WW problems.
 Makes it possible to use real numbers, complex
numbers, infinity, intervals, sets, points, vectors, matrices, and
formulas involving any of these, in a natural way.
 Can create these using the same syntax as
students will use.
 Provides a unified means of obtaining answer
checkers:
 Common means of calling the checker
 Common error messages to students
 Knowledge of full context of the problem
