Template:Equation/doc

Required parameters

 * equation:
 * label: reference label (preferable format: (section number).(equation number))

If label is not specified, id="label" is embedded instead.

Other parameters

 * name: equation name
 * pretext: pre-equation text
 * posttext: post-equation text
 * tag: equation number
 * stretch: line height expressed as a percentage

Example
$$

$$