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MathML Format 
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MathML is an HTML-like markup language for mathematics. It uses the
"knuckle" syntax of HTML such as "<mo>" to introduce a math operator
and "</mo>" to mark the end of the operator. FriCAS can generate 
MathML output and does so when it communicates to the browser front end.

This output is enabled by ::

  )set output mathml on

after which you'll see the MathML markup as well as the algebra.
Note that you can turn off the algebra output with ::
  
  )set output algebra off

but we don't do that here so you can compare the output. ::

  1/2

    1/2

  <math xmlns="http://www.w3.org/1998/Math/MathML" mathsize="big" 
        display="block">
   <mrow>
    <mn>1</mn>
    <mo>/</mo>
    <mn>2</mn>
   </mrow>
  </math>


  1/(x+5)

    1/(x + 5)

  <math xmlns="http://www.w3.org/1998/Math/MathML" mathsize="big" 
        display="block">
   <mrow>
    <mn>1</mn>
    <mo>/</mo>
    <mrow>
     <mo>(</mo>
     <mi>x</mi>
     <mo>+</mo>
     <mn>5</mn>
     <mo>)</mo>
    </mrow>
   </mrow>
  </math>

  (x+3)/(y-5)
     
     (x + 3)/(y - 5)

  <math xmlns="http://www.w3.org/1998/Math/MathML" mathsize="big" 
        display="block">
   <mrow>
    <mrow>
     <mo>(</mo>
     <mi>x</mi>
     <mo>+</mo>
     <mn>3</mn>
     <mo>)</mo>
    </mrow>
    <mo>/</mo>
    <mrow>
     <mo>(</mo>
     <mi>y</mi>
     <mo>-</mo>
     <mn>5</mn>
     <mo>)</mo>
    </mrow>
   </mrow>
  R</math>

See Also:

* )show MathMLFormat