# Fyrimynd:Math

{{{1}}} Skjalfesting til fyrimyndina[vís] [rætta] [søga] [dagfør]

The math template formats HTML- or wikimarkup generated mathematical formulas in the similar fashion as MathJax, a web-based TeX formula interpreter. The template uses the texhtml class, which aims to match the size of the serif font with the surrounding sans-serif font (see below). The template also prevents line-wrapping.

Use this template for non-complex formulas as an alternative to using the [itex]...</math> format (see: Help:Math).

## Usage

Use this template to wrap an inline formula in wikitext.

### Examples

{{math|''f''(''x'') {{=}} ''b''<sup>''x''</sup> {{=}} ''y''}}

produces: f(x) = bx = y
{{math|sin &pi; {{=}} 0}}

produces: sin π = 0.
{{math|{{intmath|int|0|+&infin;}} ''e''<sup>−''x''</sup> d''x'' {{=}} 1}}

produces: +∞
0
ex dx = 1
'''{{math|{{sfrac|1|2}} − {{sfrac|1|3}} {{=}} {{sfrac|1|6}}}}'''

produces: 1/21/3 = 1/6. Note the triple-apostrophes have set the whole formula as bold.
{{math|({{sqrt|2}})<sup>2</sup> {{=}} 2}}

produces: (2)2 = 2.

### Use of equals-sign and absolute value bars

If a single equals-sign ("=") is used, it will fail to render, instead showing "{{{1}}}". For example, the following template-coding would be invalid:

{{math|1 + 2 = 3}}
produces: {{{1}}}, which is invalid code

To resolve this, either: (a) Start the formula with "1=" as in:

{{math|1=1 + 2 = 3}}
produces: 1 + 2 = 3, or else, (b) include the equals-sign in double-braces "{{=}}" as in:
{{math|1 + 2 {{=}} 3}}
produces: 1 + 2 = 3.

A similar difficulty concerns the vertical bars ("|") used to indicate absolute value, which without care would get interpreted as part of the template syntax. The solution is different than for the equals sign: such bars should be entered as "{{!}}":

{{math|{{!}}''f''(''x'') − ''a''{{!}} < ε}}
produces: |f(x) − a| < ε.

This example can also be produced by the following:

{{math|{{mabs|''f''(''x'') − ''a''}} < ε}}
produces: |f(x) − a| < ε

### Parameters

The following parameters are optional:

• big=1 – This will render the formula in a bigger fontsize, increased to 165%.
• size=font-size – Use this to specify your own fontsize.
{{math|big=1|1 + 2 {{=}} 3}}

produces: 1 + 2 = 3

### TemplateData

Hetta er TemplateData dokumentatiónin fyri hesa fyrimynd, ið verður brúkt av VisualEditor og øðrum tólum.

Math

This template formats markup generated mathematical formulas with HTML and CSS. The template tries to match the size of the serif font with the surrounding sans-serif font. The template also prevents line-wrapping. Use this template for non-complex formulas as an alternative to using the [itex] format.

Template parameters

ParameterDescriptionTypeStatus
formula1

wrap an inline formula in wikitext.

Stringrequired
bigger font sizebig

if set to ‘1’, this will render the formula in a bigger font size, increased to 165%

Stringoptional
custom font sizesize

use this to specify your own font size

Stringoptional