Divendo/math-dragon — pull request #4 by FolkertVanVerseveld (2013-12-06 09:13:36+00:00)
Title:  More convenient methods added to MathBinaryOperation and exception handling.

Assigning children to binary operation is too awkward, because you need to specify the index number explicitly every time you use a getter/setter method. In our previous structure, MathException covered all our own exceptions. In this commitment, MathException is also included.