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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 (“×”) symbol.

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

{{xpd5op3c|a|||||e|b|d=}}

{{xpd5op3c||||||10^|b|d=}}

{{xpd5op3c||||||10^|-12|d=}}

=== Delimitation ===
The template uses the delimitation logic of the {{tl|val}} template. That is, typing {{xt|<nowiki>1.2{{e|12341}}</nowiki>}} will produce a delimited exponent ({{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|&#43;4}}}}.

=== 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|-42342|text}}</nowiki>}}, which will display {{xt|1.2&nbsp;&times;&nbsp;10<sup>-42342</sup>}} 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|&#43;4}}}}), but remember that you also lose delimitation if you do it this way.

=== See also ===
* [[m:Template:e]]
* {{tl|val}}
* {{tl|scinote}}

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