MathML errors for Kvile

[samimaattaCelia]

Writing the MathML errors that I had in one EPUB in the spring. I wrote them here, since we didn't have the document ready yet. These also render better.

Same equation on multiple lines

<math altimg="images/math-0022.jpg" alttext="" display="block" xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
    <mrow>
        <mrow>
            <mn>2</mn>
            <mo>&#x00D7;</mo>
            <mn>5</mn>
            <mo>+</mo>
            <mn>2</mn>
            <mo>&#x00D7;</mo>
            <mn>2,52</mn>
        </mrow>
    </mrow>
</semantics>
</math>
<math altimg="images/math-0023.jpg" alttext="" display="block"
xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
    <mrow>
        <mrow>
            <mo>=</mo>
            <mn>10</mn>
            <mo>+</mo>
            <mn>5,04</mn>
        </mrow>
    </mrow>
</semantics>
</math>
<math altimg="images/math-0024.jpg" alttext="" display="block"
xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
    <mrow>
        <mrow>
            <mo>=</mo>
            <mn>15,04</mn>
        </mrow>
    </mrow>
</semantics>
</math>

Use of <mfenced>

I noticed that the pattern <mfenced separators=""> repeated, so it could just be about checking that.

<math altimg="images/math-0060.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
<semantics>
    <mrow>
        <mrow>
            <mn>2</mn>
            <mo>&#x00D7;</mo>
            <mfenced separators="">
                <mrow>
                    <mn>3</mn>
                    <mo>+</mo>
                    <mn>5</mn>
                </mrow>
            </mfenced>
        </mrow>
    </mrow>
</semantics>
</math>

<math altimg="images/math-0090.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
            <mrow>
                <mfenced separators="" close="|" open="|">
                    <mrow>
                        <mn>5</mn>
                        <mo>&#x2212;</mo>
                        <mn>3</mn>
                    </mrow>
                </mfenced>
            </mrow>
        </mrow>
    </semantics>
</math>

<math altimg="images/math-0146.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
            <mfenced close="" open="{">
                <mrow>
                    <mtable equalcolumns="true" equalrows="true">
                      <mtr>
                      <mtd>
                      <mrow>
                      <mi>x</mi>
                      <mo>&#x2212;</mo>
                      <mn>3</mn>
                      <mi>y</mi>
                      <mo>=</mo>
                      <mrow>
                      <mo>&#x2212;</mo>
                      <mn>5</mn>
                      </mrow>
                      </mrow>
                      </mtd>
                      </mtr>
                      <mtr>
                      <mtd>
                      <mrow>
                      <mo>&#x2212;</mo>
                      <mn>2</mn>
                      <mi>x</mi>
                      <mo>&#x2212;</mo>
                      <mi>y</mi>
                      <mo>=</mo>
                      <mrow>
                      <mo>&#x2212;</mo>
                      <mn>4</mn>
                      </mrow>
                      </mrow>
                      </mtd>
                      </mtr>
                    </mtable>
                </mrow>
            <mo>)</mo>
        </mrow>
    </semantics>
</math>

Using MathML when not needed

<math altimg="images/math-0069.jpg" alttext=""display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
            <mn>400,00</mn>
        </mrow>
    </semantics>
</math>

Not using <mtable> correctly

The expressions don't line up in their column, because the same cell is used for all the mark up.

<math altimg="images/math-0138.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
            <mtable equalcolumns="true" equalrows="true">
                <mtr>
                    <mtd>
                        <mrow>
                          <mn>2</mn>
                          <mi>x</mi>
                          <mo>+</mo>
                          <mn>4</mn>
                          <mo>=</mo>
                          <mn>6</mn>
                          <mo>&#x2225;</mo>
                          <mo>:</mo>
                          <mn>2</mn>
                        </mrow>
                    </mtd>
                </mtr>
                <mtr>
                    <mtd>
                        <mrow>
                          <mi>x</mi>
                          <mo>+</mo>
                          <mn>2</mn>
                          <mo>=</mo>
                          <mn>3</mn>
                        </mrow>
                    </mtd>
                </mtr>
            </mtable>
        </mrow>
    </semantics>
</math>

Intended markup:

<math altimg="images/math-0138.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
            <mtable equalrows="true">
                <mtr>
                    <mtd>
                        <mrow>
                          <mn>2</mn>
                          <mi>x</mi>
                          <mo>+</mo>
                          <mn>4</mn>
                        </mrow>
                    </mtd>
                    <mtd>
                      <mo>=</mo>                        
                    </mtd>
                    <mtd>
                      <mrow>
                        <mn>6</mn>
                        
                      </mrow>
                    </mtd>
                    <mtd>
                     <mo>&#x2225;</mo>                                                
                     <mo>:</mo>
                     <mn>2</mn>
                    </mtd>
                </mtr>
                <mtr>
                    <mtd>
                        <mrow>
                          <mi>x</mi>
                          <mo>+</mo>
                          <mn>2</mn>
                        </mrow>
                    </mtd>
                    <mtd>
                      <mo>=</mo>
                    </mtd>
                    <mtd>
                      <mn>3</mn>
                    </mtd>
                    <mtd>
                    </mtd>                                          
                </mtr>
            </mtable>
        </mrow>
    </semantics>
</math>

Using comma as an operator when it should be a decimal comma

<math altimg="images/math-0208.jpg" alttext="" display="block" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
          <mfrac>
          <mrow>
          <mn>3</mn>
          <mo>+</mo>
          <mn>4</mn>
          </mrow>
          <mn>2</mn>
          </mfrac>
          <mo>=</mo>
          <mfrac>
          <mn>7</mn>
          <mn>2</mn>
          </mfrac>
          <mo>=</mo>
          <mn>3</mn>
          <mo>,</mo>
          <mn>5</mn>
        </mrow>
    </semantics>
</math>

Using a decimal point when it should be decimal comma

(Also too many <mrow>s.)

<math altimg="images/math-0209.jpg" alttext="" display="inline" xmlns="http://www.w3.org/1998/Math/MathML">
    <semantics>
        <mrow>
          <mrow>
          <mn>3.5</mn>
          </mrow>
        </mrow>
    </semantics>
</math>