MathML Example

Display:

$J_{0} y k$

Source:

<apply>
     <csymbol encoding="OpenMath" definitionURL="http://www.openmath.org/cd/BesselFunctions.ocd">
          <msub>
               <mi>J</mi>
               <mn>0</mn>
          </msub>
     </csymbol>
     <ci>y</ci>
</apply>
<csymbol encoding="text" definitionURL="www.example.org/universalconstants/Boltzmann.htm"> k </csymbol>