How to use the MathML Number Element: "mn"?

"mn" is the MathML Number Element that allows you to specify a numeric value in a mathematical express.

The syntax for "mn" element is:

<mn>value</mn>

Here are some guidelines on how to specify a numeric value:

• Integer and decimal numbers are allowed.
• Scientific notations are allowed.
• Operators and symbols should not be used.

Here are some good examples of "mn" elements:

<math>
  <mrow>
    <mn>1024</mn><mo>,</mo>
    <mn>1,024</mn><mo>,</mo>
    <mn>-17.77778</mn><mo>,</mo>
    <mn>3.14</mn><mo>,</mo>
    <mn>9.1e-31</mn><mo>,</mo>
    <mn>π</mn><mo>,</mo>
  </mrow>
</math>

The above MathML example represents:

$1024,\mathrm{1,024},-17.77778,3.14,9.1e-31,\mathrm{\pi },$

Here are some bad examples of "mn" elements:

<math>
  <mrow>
    <mn>$0.99</mn><mo>,</mo>
    <mn>5.00%</mn><mo>,</mo>
    <mn>3^2</mn><mo>,</mo>
  </mrow>
</math>

The above MathML example represents:

$\mathrm{\$0.99},\mathrm{5.00\%},\mathrm{3^2},$

⇒ "mo" - MathML Operator Element

⇐ "mi" - MathML Identifier Element

⇑ Simple MathML Elements

⇑⇑ MathML (Mathematical Markup Language)