# asgn4 - Assignment 4 Expression Parser CAP6938 Due 11:59pm...

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Assignment 4 – Expression Parser CAP6938 Due: 10/25/08 11:59pm The focus of this fourth assignment is to learn the intricacies of creating a 2D parsing system for recognizing mathematical expressions. This is the second part of a two part assignment where you will be creating a simple pen-based calculator. This assignment requires you to take recognized symbols and understand the spatial relationships between them. This understanding will let you create parse trees for mathematical expressions that can be evaluated using simple tree traversal. Requirements Your expression parser must be able to take a list of recognized symbols and their bounding boxes and output a parse tree so the expressions you write can be evaluated. Your parse should support addition, subtraction, multiplication, fractions, superscripts (one level only), square roots, and the equal sign. Examples of some expressions your expression recognizer should be able to handle include:

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