EVOLUTION-MANAGER
Edit File: mathmlScript.xml
<?xml version="1.0"?> <!DOCTYPE mrow SYSTEM "mathml.dtd" [ <!ENTITY alpha "alpha"> ]> <mrow> <msup> <msub> <mi>x</mi> <mn>1</mn> </msub> <mi>α</mi> </msup> <mo>+</mo> <msubsup> <mi>x</mi> <mn>1</mn> <mi>α</mi> </msubsup> </mrow>