[Axiom-developer] [PolynomialCommonDenominator] Add example

[wyscc]

Changes 
http://page.axiom-developer.org/zope/mathaction/PolynomialCommonDenominator/diff
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++added:
Example use:

\begin{axiom}
)set mess type off
dom:=DMP([x,y], FRAC DMP([z],INT));
p:dom:=x*y^3/(z^2-1) + 3*x*y/(z^3-1)
commonDenominator p
clearDenominator p
splitDenominator p
\end{axiom}


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forwarded from http://page.axiom-developer.org/zope/mathaction/address@hidden