# Help:Formula

### From Ganfyd

*This article is a stub. Please feel free to expand it and make it more encyclopaedic.*

For many purposes the special characters listed in *Help:Contribute Character formatting section** will suffice. *

For more complex formluae the mathematical formulae may be required. This type of formula is contained by ** <math>** tags as follows:

**produces 2 + 2.**

`<math>2 + 2</math>`The syntax for the formula is fairly simple, honestly—The formula is composed of bits as you would normally try to type them.
** ax^2 + bx + c = 0</math>** is rendered as

*a*

*x*

^{2}+

*b*

*x*+

*c*= 0

To combine basic expressions like the above into complicated formulae, the following constructions are helpful.

### Fractions

`\frac{ numerator }{ denominator }`

### Roots

Square root: | \sqrt{x} |

Cube root: | \sqrt[3]{x} |

Nth root: | \sqrt[n]{x} |