<math xmlns="http://www.w3.org/1998/Math/MathML"> <piecewise> <piece> <apply> <minus/> <ci>x</ci> </apply> <apply> <lt/> <ci>x</ci> <cn>0</cn> </apply> </piece> <piece> <cn>0</cn> <apply> <eq/> <ci>x</ci> <cn>0</cn> </apply> </piece> <piece> <ci>x</ci> <apply> <gt/> <ci>x</ci> <cn>0</cn> </apply> </piece> </piecewise> </math>
Author: MathML 2 Recommendation