Sjabloon:Numkey/doc

Use

This template creates an invisible sort key prefix based upon a real number for use in sortable tables with mixed numbers and text or merely text. This template creates a valid sort key with an accuracy of one part in 10,000,000,000 for real numbers in the ranges 1e-300 to 1e300 and -1e-300 to -1e300. If the absolute value of the real number is greater than 1e300, this template creates a key representing infinity. If the absolute value of the real number is less than 1e-300, this template creates a key representing infinitesimal. If the input variable is not a real number, this template does not create a key.

The syntax for this template is:

{{numkey|var1}}

where:

• var1 = any real number
  • NOTE: var1 may not contain thousands separators

The use of this template is illustrated below:

Wikitext	Invisible sort key prefix	sort without key	sort with key
{{numkey|0}}zero	<span style="display:none">!F </span>	zero	!F zero
{{numkey|1}}one	<span style="display:none">!C </span>	one	!C one
{{numkey|+2}}+2	<span style="display:none">!B9993068528194 </span>	+2	!B9993068528194 +2
{{numkey|-3}}-3	<span style="display:none">!J0010986122886 </span>	-3	!J0010986122886 -3
{{numkey|-4.01267}}-4.01267	<span style="display:none">!J0013894568551 </span>	-4.01267	!J0013894568551 -4.01267
{{numkey|5.125}}5.125&nbsp;amperes	<span style="display:none">!B9983658694749 </span>	5.125 amperes	!B9983658694749 5.125 amperes
{{numkey|{{#expr:2*pi}}}}2&pi;	<span style="display:none">!B9981621229335 </span>	2π	!B9981621229335 2π
{{numkey|7}}VII	<span style="display:none">!B9980540898509 </span>	VII	!B9980540898509 VII
{{numkey|8.27}}£8.27	<span style="display:none">!B9978873654909 </span>	£8.27	!B9978873654909 £8.27
{{numkey|-9.000}}-9.000	<span style="display:none">!J0021972245773 </span>	-9.000	!J0021972245773 -9.000
{{numkey|10}}10 apples	<span style="display:none">!B9976974149070 </span>	10 apples	!B9976974149070 10 apples
{{numkey|1776}}MDCCLXXVI	<span style="display:none">!B9925178810764 </span>	MDCCLXXVI	!B9925178810764 MDCCLXXVI
{{numkey|10000000000}}10,000,000,000	<span style="display:none">!B9769741490700 </span>	10,000,000,000	!B9769741490700 10,000,000,000
{{numkey|10000000001}}10,000,000,001	<span style="display:none">!B9769741490699 </span>	10,000,000,001	!B9769741490699 10,000,000,001
{{numkey|12046360889000}}$12,046,360,889,000	<span style="display:none">!B9698802162706 </span>	$12,046,360,889,000	!B9698802162706 $12,046,360,889,000
{{numkey|1e100}}googol	<span style="display:none">!B7697414907005 </span>	googol	!B7697414907005 googol
{{numkey|-1}}minus one	<span style="display:none">!I </span>	minus one	!I minus one
{{numkey|0.25}}$0.25	<span style="display:none">!D0013862943611 </span>	$0.25	!D0013862943611 $0.25
{{numkey|-0.035}}-0.035	<span style="display:none">!H9966475927825 </span>	-0.035	!H9966475927825 -0.035
{{numkey|-1.4525e-9}}-1.4525e-9&nbsp;m	<span style="display:none">!H9796500203727 </span>	-1.4525e-9 m	!H9796500203727 -1.4525e-9 m
{{numkey|1e-300}}googol<sup>-3</sup>	<span style="display:none">!D6907755278982 </span>	googol-3	!D6907755278982 googol-3
{{numkey|-1e300}}-googol<sup>3</sup>	<span style="display:none">!J6907755278982 </span>	-googol3	!J6907755278982 -googol3
{{numkey|1e301}}1e301	<span style="display:none">!A </span>	1e301	!A 1e301
{{numkey|1e-302}}1e-302	<span style="display:none">!E </span>	1e-302	!D6953806980842 1e-302
{{numkey|-1e303}}-1e303	<span style="display:none">!K </span>	-1e303	!K -1e303
{{numkey|-1e-304}}-1e-304	<span style="display:none">!G </span>	-1e-304	!H3000141317298 -1e-304
{{numkey|not a number}}AAA		AAA	AAA
{{numkey}}ZZZ		ZZZ	ZZZ

See also

• This template invokes Template:Hid.
• Template:Numkey2 invokes this template and provides additional functionality.