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Organize Complex Expressions for Maximum Readability
Mathematica 7 uses a large collection of algorithms and heuristics to decide how to organize different kinds of terms so as to maximize readability.
In[1]:=

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\[Integral](x^20 Log[1 + x])/(

   1 + x^4) \[DifferentialD]x // TraditionalForm
Out[1]//TraditionalForm=