MathML Basic Elements

MathML (Mathematical Markup Language), similar to HTML which is used to encode the structure and content of a webapge, is an XML dialect for encoding mathematical expressions on a webapge. MathML most basic elements are <mn>, <mi> and <mo>.

mn Use this element to specify a numeric literal.

mi Use this element to specify an identifier, for example the name of a variable.

mo Use this element to specify an operator, for example +, -, =. Brackets are also considered operators.

Examples:

y + 4 = 5

<math>
  <mi>y</mi>
  <mo>+</mo>
  <mn>4</mn>
  <mo>=</mo>
  <mn>5</mn>
</math>

Most basic math expressions can be rendered with these three elements.

2 x - 14 + 3 (x + 2) = -4

<math>
   <mn>2</mn>
   <mi>x</mi>
   <mo>-</mo>
   <mn>14</mn>
   <mo>+</mo>

   <mn>3</mn>
   <mo>(</mo>
   <mi>x</mi>
   <mo>+</mo>
   <mn>2</mn>
   <mo>)</mo>

   <mo>=</mo>
   <mn>-4</mn>
</math>

Note that the mo operator is used to place parentheses.

6 (2 x + 2 - 4 (4 x - 2))

<math>
   <mn>6</mn>
   <mo>(</mo>
     <mn>2</mn>
     <mi>x</mi>
     <mo>+</mo>
     <mn>2</mn>
     <mo>-</mo>
       <mn>4</mn>
       <mo>(</mo>

      <mn>4</mn>
      <mi>x</mi>
      <mo>-</mo>
      <mn>2</mn>
      <mo>)</mo>
   <mo>)</mo>
</math>

The example above uses nested parentheses, a set of parentheses inside another set. Of course, to evaluate nested parentheses, start by evaluating the inner set of and then work your way outward.

Learn more at amazon.com

More Graphics Design Tips:
• Image Processing Filters - How to Sharpen a Photograph
• Inkscape Layers and Z-Order
• MathML mo Element Operators
• Graphics Design for Beginners - Cropping Images
• Selecting Vertices Edges and Faces in Blender
• How to Remove PNG and JPEG EXIF Metadata
• Tips For Hand Coding MathML
• How to Make Beautiful Skies with GIMP
• CSS Button Designer
• Inkscape Shadows and Highlights