mfracSfonts13

This example tests how the <i>fontsize</i>, <i>fontstyle</i> and <i>fontweight</i> attributes inherit from <mstyle> to <mfrac>. In particular, these tests show how the line thickness of the bar is affected by these attributes.

<math xmlns="http://www.w3.org/1998/Math/MathML">
  <mrow>
    <mstyle fontweight="bold" fontsize="7px">
      <mfrac>
        <mn>1</mn>
        <mrow>
          <mi>y</mi>
          <mo>+</mo>
          <mn>3</mn>
        </mrow>
      </mfrac>
    </mstyle>
    <mstyle fontstyle="normal">
      <mfrac>
        <mn>1</mn>
        <mrow>
          <mi>y</mi>
          <mo>+</mo>
          <mn>3</mn>
        </mrow>
      </mfrac>
    </mstyle>
    <mstyle fontsize="12pt">
      <mfrac>
        <mn>1</mn>
        <mrow>
          <mi>y</mi>
          <mo>+</mo>
          <mn>3</mn>
        </mrow>
      </mfrac>
    </mstyle>
  </mrow>
</math>

Author: Robert Miner and Jeff Schaefer, Geometry Technologies