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File: | mrootE2.mml mrootE2.xhtml
Author: | Robert Miner and Jeff Schaefer, Geometry Technologies
Description: | There should be an error unless has exactly two children. Of course, it could be more friendly than the one shown below...
Rendering: | WebEQ Error
    ****** Wizard error -- check output *******
    java.lang.NullPointerException:
    ******************************************
Original Code
    <math>
      <mrow>
        <mroot>
          <mn>3</mn><mi>x</mi><mn>2</mn>
        </mroot>
        <mroot>
          <mn>3</mn>
        </mroot>
      </mrow>
    </math>

MathML Code:

    <math>
      <mrow>
        <mroot>
          <mn>3</mn><mi>x</mi><mn>2</mn>
        </mroot>
        <mroot>
          <mn>3</mn>
        </mroot>
      </mrow>
    </math>