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Three ingredients are required to understand this program. Since it destined for the specific purpose of displaying the solutions of differential equations, familiarity with that subject matter is obviously required. Additionaly, it is intended to be a user interface appendage to the program SERO, implying a familiarity with that program as well.

Given that the design is accomplished by using REC, an understanding of that language is evidently required.

Finally, the program is implemented in Objective C running under the NeXTSTEP operating system [3], to take advantage of its excellent visual interface and other attractive features.