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This template is used on approximately 10,000 pages and changes may be widely noticed. Test changes in the template's /sandbox or /testcases subpages, or in your own user subpage. Consider discussing changes on the talk page before implementing them.

This template should not be used in citation templates such as Citation Style 1 and Citation Style 2, because it includes markup that will pollute the COinS metadata they produce; see Wikipedia:COinS.

This template uses Lua:

Module:Su (sandbox)

Purpose

Template for creating two smaller lines of text on one actual line, this can be used for scientific notations of uncertainty and physics symbols, such as nuclides and particles.

It was named after the  and  HTML tags, which share the first two letters of their name with this template. This template uses the third letter of the name of these tags, p and b, as the name of the argument that drives the output of the top and bottom line, respectively.

Editors beware: these templates use all kinds of hacky tricks to make the output render correctly in a wide variety of browsers. If you plan to make changes to this template, please make sure you verify that this template renders correctly after those changes in all major browsers. This list includes the latest version(s) of Chrome, Firefox, and Safari.

Arguments

`\|p=`	The contents of the top line.
`\|b=`	The contents of the bottom line.
`\|a=`	The alignment of both lines (`\|a=r`: right-aligned; `\|a=c`: center-aligned; default is left-aligned).
`\|w=`	The size of the characters (`\|w=f`: fixed-width (monospace), otherwise template inherits the current font and context by default).
`\|lh=`	The line height or distance from top to bottom (including top character). Default is 1.2em.

Note on fractions

Usually, when using vulgar fractions it is MOS habit to use &frasl; (⁄) (MOS:FRAC) and ((frac)). However, in or tags, best use the keyboard slash / for readability in most browsers:

X^1⁄2
_7⁄8 (fraction slash)

and

X^1/2
_7/8 (keyboard slash)

Examples

Simple

X((su|p=a)) X((su|b=b)) X((su|p=a|b=b)) ((su|p=a|b=b))X ((su|p=a|b=b))X((su|p=c|b=d))

X^a
X
_b X^a
_b ^a
_bX ^a
_bX^c
_d

Left-aligned (default)

X^aaaaa
_b X^aaaaa
_bY X^a
_bbbbb ^a
_bbbbbX

Right-aligned

X((su|a=r|p=aaaaa|b=b))X((su|a=r|p=a|b=bbbbb))X

X^aaaaa
_bX^a
_bbbbbX

Center-aligned

X((su|a=c|p=aaaaa|b=b))X((su|a=c|p=a|b=bbbbb))X

X^aaaaa
_bX^a
_bbbbbX

Smaller font

((small|X((su|p=a))X((su|b=b))X((su|p=a|b=b))X))

X^a
X
_bX^a
_bX

Larger font

((big|X((su|p=a))X((su|b=b))X((su|p=a|b=b))X))

X^a
X
_bX^a
_bX

Fixed-width

X((su|p=...|b=www))X((su|w=f|p=...|b=www))X

X^...
_wwwX^...
_wwwX

Close-spacing

((su|p=4|b=4)) ((su|lh=0.8em|p=4|b=4))

⁴
₄ ⁴
₄

Line breaks

Unlike and tags, this template does not prevent line breaks between the two small lines and the preceding text. Thus, if this template is used to supply a subscript and superscript over a base symbol, the whole structure has to be enclosed in a ((nowrap)), or this template should be invoked through another template that takes care of the wrapping in an appropriate way.

Example: ((nowrap|X((su|p=a|b=b)))) → X^a
_b

sup		text^superscript ^superscripttext
smallsup	(ssup)	text^{small superscript} ^{small superscript}text
i sup	(isup · padlsup)	text^superscript (rather than: text^superscript)
i smallsup	(issup · padlssup)	text^{small superscript} (rather than: text^{small superscript})
b sup	(bsup)	text^superscript (rather than: text^superscript)
sub		text_subscript _subscripttext
smallsub	(ssub)	text_{small subscript} _{small subscript}text
subsub		text_{_{double-subscripted}} _{_{double-subscripted}}text

su		text^{p=superscript} _b=subscript ^{p=superscript} _b=subscripttext
sup sub		text^sup _sub ^sup _subtext
±		1.23⁺⁴ ₋₂
overunderset / underoverset		superscripttextsubscript

Subscript and superscript

Math templates

Functions
Numeral systems

Functions	elementary arithmetic precision val (value formatting) percentage
Numeral systems	((#invoke:BaseConvert\|XtoY)) binary decimal2Base hex2dec hexadecimal octal quaternary quinary rn roman senary ternary vigesimal

Conversions

convert	many units (see: list)
cvt	abbreviated ((convert))
convinfobox	((convert)) for infoboxes
bbl to t	barrels of oil to tonnes
long ton	long hundredweights, quarters and pounds to kilograms; long tons and hundredweights to pounds and metric tons
miles-chains	miles and chains to kilometres linking "chains"

decdeg	degrees, minutes, and seconds to decimal degrees
deg2dms	decimal degrees to degrees, minutes, and seconds
deg2hms	decimal degrees to hour angle (in hours, minutes, and seconds)
hms2deg	hour angle (in hours, minutes, and seconds) to decimal degrees
inflation	calculate inflation of Consumer Price Index-related prices
pop density	population density in an area
track gauge	railway track gauges

Notation and formatting

bigmath	bigger font to match TeX `\displaystyle` (standalone formulas only)
bra-ket braket bra ket	bra–ket notation
ceil, floor	calculations :mw:Help:#expr; formatting indicators ⌈3.14⌉, ⌊3.14⌋ (no calculation performed)
fraction	slant fractions 3⁄5 (not for maths/science articles; use standing or upright fractions `((sfrac))` instead)
intmath	integral symbols
langle rangle angbr	angular brackets
ldelim rdelim	multiline delimiters (2–5 lines inclusive)
abs	absolute values (paired vertical lines)
math	short text-based formulas
mathcal	[mathematical] calligraphic font; alternative to LaTeX `\mathcal{...}`

mvar	individual italicized maths variables in normal text
overline underline	a line set above/below a sequence of characters
overarc	an arc set above a sequence of characters
overset underset	arbitrary characters/diacritics set above/below one another
pars	parentheses that can be resized $(\sum)$
sfrac	"standing" or upright fractions 3/5 (use in maths/science articles instead of`((fraction))`)
sub sup su	subscripts and superscripts
tmath	Wrap TeX in <math> tags
tombstone	symbol indicating the end of a proof
val	measurement values, uncertainties and units
vec	various overarrows, underarrows, etc.

Boxes

`\|p=`	The contents of the top line.
`\|b=`	The contents of the bottom line.
`\|a=`	The alignment of both lines (`\|a=r`: right-aligned; `\|a=c`: center-aligned; default is left-aligned).
`\|w=`	The size of the characters (`\|w=f`: fixed-width (monospace), otherwise template inherits the current font and context by default).
`\|lh=`	The line height or distance from top to bottom (including top character). Default is 1.2em.