stretchy="true" is missing in mo element

[Simbu R]

Hi Everyone,

I have used the mathjax for latex to mathml conversion and we send the mathml output for our customer. 

We need <mo strechy="true"> and <mo strechy="false"> for all fences. 

Input:

$\ln \,{\gamma _i} =  - \ln ({x_i} + {\Lambda _{ij}}{x_j}) - {x_j}\left( {\frac{{\left[ {{\Lambda _{ij}}} \right]}}{{\left( {{x_i} + {\Lambda _{ij}}{x_j}} \right)}} - \frac{{\left\{ {{\Lambda _{ji}}} \right\}}}{{{x_j} + {\Lambda _{ji}}{x_i}}}} \right)$

Output:

<math xmlns="http://www.w3.org/1998/Math/MathML" display="block">
  <mi>ln</mi>
  <mspace width="thinmathspace" />
  <mrow class="MJX-TeXAtom-ORD">
    <msub>
      <mi>&#x03B3;<!-- γ --></mi>
      <mi>i</mi>
    </msub>
  </mrow>
  <mo>=</mo>
  <mo>&#x2212;<!-- − --></mo>
  <mi>ln</mi>
  <mo>&#x2061;<!-- ⁡ --></mo>
  <mo stretchy="false">(</mo>
  <mrow class="MJX-TeXAtom-ORD">
    <msub>
      <mi>x</mi>
      <mi>i</mi>
    </msub>
  </mrow>
  <mo>+</mo>
  <mrow class="MJX-TeXAtom-ORD">
    <msub>
      <mi mathvariant="normal">&#x039B;<!-- Λ --></mi>
      <mrow class="MJX-TeXAtom-ORD">
        <mi>i</mi>
        <mi>j</mi>
      </mrow>
    </msub>
  </mrow>
  <mrow class="MJX-TeXAtom-ORD">
    <msub>
      <mi>x</mi>
      <mi>j</mi>
    </msub>
  </mrow>
  <mo stretchy="false">)</mo>
  <mo>&#x2212;<!-- − --></mo>
  <mrow class="MJX-TeXAtom-ORD">
    <msub>
      <mi>x</mi>
      <mi>j</mi>
    </msub>
  </mrow>
  <mrow>
    <mo>(</mo>
    <mrow class="MJX-TeXAtom-ORD">
      <mfrac>
        <mrow class="MJX-TeXAtom-ORD">
          <mrow>
            <mo>[</mo>
            <mrow class="MJX-TeXAtom-ORD">
              <mrow class="MJX-TeXAtom-ORD">
                <msub>
                  <mi mathvariant="normal">&#x039B;<!-- Λ --></mi>
                  <mrow class="MJX-TeXAtom-ORD">
                    <mi>i</mi>
                    <mi>j</mi>
                  </mrow>
                </msub>
              </mrow>
            </mrow>
            <mo>]</mo>
          </mrow>
        </mrow>
        <mrow class="MJX-TeXAtom-ORD">
          <mrow>
            <mo>(</mo>
            <mrow class="MJX-TeXAtom-ORD">
              <mrow class="MJX-TeXAtom-ORD">
                <msub>
                  <mi>x</mi>
                  <mi>i</mi>
                </msub>
              </mrow>
              <mo>+</mo>
              <mrow class="MJX-TeXAtom-ORD">
                <msub>
                  <mi mathvariant="normal">&#x039B;<!-- Λ --></mi>
                  <mrow class="MJX-TeXAtom-ORD">
                    <mi>i</mi>
                    <mi>j</mi>
                  </mrow>
                </msub>
              </mrow>
              <mrow class="MJX-TeXAtom-ORD">
                <msub>
                  <mi>x</mi>
                  <mi>j</mi>
                </msub>
              </mrow>
            </mrow>
            <mo>)</mo>
          </mrow>
        </mrow>
      </mfrac>
      <mo>&#x2212;<!-- − --></mo>
      <mfrac>
        <mrow class="MJX-TeXAtom-ORD">
          <mrow>
            <mo>{</mo>
            <mrow class="MJX-TeXAtom-ORD">
              <mrow class="MJX-TeXAtom-ORD">
                <msub>
                  <mi mathvariant="normal">&#x039B;<!-- Λ --></mi>
                  <mrow class="MJX-TeXAtom-ORD">
                    <mi>j</mi>
                    <mi>i</mi>
                  </mrow>
                </msub>
              </mrow>
            </mrow>
            <mo>}</mo>
          </mrow>
        </mrow>
        <mrow class="MJX-TeXAtom-ORD">
          <mrow class="MJX-TeXAtom-ORD">
            <msub>
              <mi>x</mi>
              <mi>j</mi>
            </msub>
          </mrow>
          <mo>+</mo>
          <mrow class="MJX-TeXAtom-ORD">
            <msub>
              <mi mathvariant="normal">&#x039B;<!-- Λ --></mi>
              <mrow class="MJX-TeXAtom-ORD">
                <mi>j</mi>
                <mi>i</mi>
              </mrow>
            </msub>
          </mrow>
          <mrow class="MJX-TeXAtom-ORD">
            <msub>
              <mi>x</mi>
              <mi>i</mi>
            </msub>
          </mrow>
        </mrow>
      </mfrac>
    </mrow>
    <mo>)</mo>
  </mrow>
</math>

more latex sample for above case.

Input 2:  $\ln \,{\gamma _i} = x_j^2\left[ {{\tau _{ji}}{{\left( {\frac{{{G_{ji}}}}{{{x_i} + {x_j}{G_{ji}}}}} \right)}^2} + \frac{{{\tau _{ij}}{G_{ij}}}}{{{{\left( {{x_j} + {x_i}{G_{ij}}} \right)}^2}}}} \right]$

             

           <mo stretchy="true"> is required

 

Input 3:  $\frac{{g_{{\rm{combinatorial}}}^E}}{{RT}} = {x_i}\ln \left( {\frac{{{\phi _i}}}{{{x_i}}}} \right) + {x_j}\ln \left( {\frac{{{\phi _j}}}{{{x_j}}}} \right) + \frac{z}{2}\left( {\left( {{q_i}{x_i}} \right)\ln \frac{{{\theta _i}}}{{{\phi _i}}} + {q_j}{x_j}\ln \frac{{{\theta _j}}}{{{\phi _j}}}} \right)$

             <mo stretchy="true"> and <mo stretchy="false"> both are required.

Regards,

Simbu R.

[Davide P. Cervone]

I have used the mathjax for latex to mathml conversion and we send the mathml output for our customer. 

We need <mo strechy="true"> and <mo strechy="false"> for all fences. 

The operator dictionary default for ( is stretchy="true", so there is no need to include it explicitly on the <mo>.  The results of MathJax's TeX to MathML conversion does not include attributes that are the defaults for the given element, so stretchy="true" is not added explicitly to any <mo> for which it is the default.  

For me, the result of your expression, and the two below, does show stretchy delimiters.  You also say that you expect stretchy="false" to be applied, but I don't see where you would want that to be.  So I'm confused about your issue.  As far as I can see, the MathML output is correct for all three examples.

Davide

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[Simbu R]

Thanks for your support. Now i am clear...