قالب:Numkey2/doc

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Use

This template creates an invisible sort key prefix based upon a real number or one of several mathematical symbols 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 greater than 0 but 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 of this template is:

{{numkey2|var1}}

where var1 is any real number (may contain thousands separators), ∞, 1/∞, -1/∞, -∞, INF, 1/INF, -1/INF, -INF, IND, indeterminate, UND, undefined, UNK, unknown, NA, not applicable, or not available.

The use of this template is illustrated in the sortable table below:

Wikitext	Invisible sort key prefix	sort without key	sort with key
{{numkey2\|0}}zero	<span style="display:none">!F </span>	zero	zero
{{numkey2\|1}}one	<span style="display:none">!C </span>	one	one
{{numkey2\|+2}}+2	<span style="display:none">!B9993068528194 </span>	+2	+2
{{numkey2\|-3}}-3	<span style="display:none">!J0010986122886 </span>	-3	-3
{{numkey2\|-4.01267}}-4.01267	<span style="display:none">!J0013894568551 </span>	-4.01267	-4.01267
{{numkey2\|5.125}}5.125 amperes	<span style="display:none">!B9983658694749 </span>	5.125 amperes	5.125 amperes
{{numkey2\|{{#expr:2*pi}}}}2π	<span style="display:none">!B9981621229335 </span>	2π	2π
{{numkey2\|7}}VII	<span style="display:none">!B9980540898509 </span>	VII	VII
{{numkey2\|8.27}}£8.27	<span style="display:none">!B9978873654909 </span>	£8.27	£8.27
{{numkey2\|-9.000}}-9.000	<span style="display:none">!J0021972245773 </span>	-9.000	-9.000
{{numkey2\|10}}10 apples	<span style="display:none">!B9976974149070 </span>	10 apples	10 apples
{{numkey2\|1776}}MDCCLXXVI	<span style="display:none">!B9925178810764 </span>	MDCCLXXVI	MDCCLXXVI
{{numkey2\|10000000000}}10,000,000,000	<span style="display:none">!B9769741490700 </span>	10,000,000,000	10,000,000,000
{{numkey2\|10000000001}}10,000,000,001	<span style="display:none">!B9769741490699 </span>	10,000,000,001	10,000,000,001
{{numkey2\|12046360889000}}$12,046,360,889,000	<span style="display:none">!B9698802162706 </span>	$12,046,360,889,000	$12,046,360,889,000
{{numkey2\|1e100}}googol	<span style="display:none">!B7697414907005 </span>	googol	googol
{{numkey2\|-1}}minus one	<span style="display:none">!I </span>	minus one	minus one
{{numkey2\|0.25}}$0.25	<span style="display:none">!D0013862943611 </span>	$0.25	$0.25
{{numkey2\|-0.035}}-0.035	<span style="display:none">!H9966475927825 </span>	-0.035	-0.035
{{numkey2\|-1.4525e-9}}-1.4525e-9 m	<span style="display:none">!H9796500203727 </span>	-1.4525e-9 m	-1.4525e-9 m
{{numkey2\|1e-300}}googol<sup>-3</sup>	<span style="display:none">!D6907755278982 </span>	googol^-3	googol^-3
{{numkey2\|-1e300}}-googol<sup>3</sup>	<span style="display:none">!J6907755278982 </span>	-googol³	-googol³
{{numkey2\|1e301}}1e301	<span style="display:none">!A </span>	1e301	1e301
{{numkey2\|1e-302}}1e-302	<span style="display:none">!E </span>	1e-302	1e-302
{{numkey2\|-1e303}}-1e303	<span style="display:none">!K </span>	-1e303	-1e303
{{numkey2\|-1e-304}}-1e-304	<span style="display:none">!G </span>	-1e-304	-1e-304
{{numkey2\|not a number}}AAA		AAA	AAA
{{numkey2}}ZZZ		ZZZ	ZZZ

Use

See also