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The {{tl|e}} and {{tl|10^}} templates are intended to facilitate and make uniform [[scientific notation]] numbers. The {{tl|10^}} template works exactly as described below except that it does not generate a multiplication (“{{xt|&times;}}”) symbol.

==Usage==
To render {{xt|3.14{{e|-12}}}}, instead of writing {{xt|<nowiki>3.14&amp;nbsp;&amp;times;&amp;nbsp;10<sup>&amp;minus;12</sup></nowiki>}} you can write {{xt|<nowiki>3.14{{e|-12}}</nowiki>}}:

{{xt|<nowiki>{{e|b}}</nowiki>}} &rarr; {{xt|{{e|b}}}}

{{xt|<nowiki>{{10^|b}}</nowiki>}} &rarr; {{xt|{{10^|b}}}}

{{xt|<nowiki>{{e|-12}}</nowiki>}} &rarr; {{xt|{{e|-12}}}}

{{xt|<nowiki>{{10^|-12}}</nowiki>}} &rarr; {{xt|{{10^|-12}}}}

The first output character for {{tlf|e}} is a non-breaking thin-space (“{{xt|]}}” and “{{xt|[}}” are used to illustrate the effects):

{{xt|<nowiki>]{{e|b}}[</nowiki>}} &rarr; {{xt|]{{e|b}}[}}

{{xt|<nowiki>]{{10^|b}}[</nowiki>}} &rarr; {{xt|]{{10^|b}}[}}

{{xt|<nowiki>]{{e|-12}}[</nowiki>}} &rarr; {{xt|]{{e|-12}}[}}

{{xt|<nowiki>]{{10^|-12}}[</nowiki>}} &rarr; {{xt|]{{10^|-12}}[}}

===Delimiters===

The template uses gaps or commas, per {{tl|val/delimitnum}}.<br />
{{xt|<nowiki>1.2{{e|12341}}</nowiki>}} &rarr; {{xt|1.2{{e|12341}}}}

See ''[[#Forcing text display]]'' to turn this off.

===Text and number recognition===
By default, the template recognizes both text and numbers. That is, typing {{xt|<nowiki>3.14{{e|-12}}</nowiki>}}  will produce {{xt|3.14{{e|-12}}}}, with the proper [[minus sign]] (“{{xt|&minus;}}”), rather than with a [[hyphen]] (“{{xt|-}}”). However, typing {{xt|<nowiki>A{{e|-BC}}</nowiki>}} will produce {{xt|A{{e|-BC}}}} since {{xt|BC}} is not a number. In those cases, you need to write {{xt|<nowiki>A{{e|&amp;minus;BC}}</nowiki>}} to produce the correct {{xt|A{{e|&minus;BC}}}}.

A minus sign also has to be provided for cases like {{xt|1.2{{e|1 &minus; 2}}}} ({{xt|<nowiki>1.2{{e|1 &amp;minus; 2}}</nowiki>}}).

===Explicit plus sign===
To explicitly display the {{xt|+}} character, write {{xt|<nowiki>1.2{{e|4|plus}}</nowiki>}} which will produce {{xt|1.2{{e|4|plus}}}}.

===Forcing text display===
To force the template to display the input as text, and forgo the automatic delimitation and the recognition of the hyphen as a minus sign, write {{xt|<nowiki>1.2{{e|&amp;minus;42342|text}}</nowiki>}}, which will display {{xt|1.2{{e|&minus;42342|text}}}} instead of {{xt|1.2{{e|-42342}}}}. This can also be used as an alternative to explicitly display the plus sign ({{xt|<nowiki>1.2{{e|+4|text}}</nowiki>}} gives {{xt|1.2{{e|+4|text}}}}), but remember that you also lose delimitation if you do it this way.

== Tracking category ==
* {{clc|Articles using E without any arguments}} – a hidden category which may be added to pages using [[Template:E]]

==See also==
* [[m:Template:e]]
* {{tl|e-sp}}, a more spaced version of {{tl|e}}.
* {{tl|val}}
* {{tl|scinote}}


{{Sup and sub-related templates}}

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[[Category:Mathematical formatting templates]]
[[Category:Superscript and subscript templates]]
[[Category:Templates that add a tracking category]]

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