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	<title>Template:Physical constants/data/doc - Revision history</title>
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	<updated>2026-04-29T07:59:59Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
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	<entry>
		<id>http://70.231.62.181/index.php?title=Template:Physical_constants/data/doc&amp;diff=7746414&amp;oldid=prev</id>
		<title>imported&gt;Quondum: sync with example on data page</title>
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		<updated>2024-06-23T23:50:26Z</updated>

		<summary type="html">&lt;p&gt;sync with example on data page&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;{{Documentation subpage}}&lt;br /&gt;
&amp;lt;!-- Categories and interwikis go at the bottom of this page. --&amp;gt;&lt;br /&gt;
&lt;br /&gt;
This is the /data subpage for {{t|Physical constants}}. It stores all of the values used by the main template.&lt;br /&gt;
&lt;br /&gt;
== Usage ==&lt;br /&gt;
This subpage provides a switch statement to determine the data sent back to the main template. Use the template below for ease of adding a new constant.&lt;br /&gt;
&lt;br /&gt;
&amp;lt;syntaxhighlight lang=&amp;quot;wikitext&amp;quot;&amp;gt;&lt;br /&gt;
    |_name_ =  {{#switch: {{{2}}}&lt;br /&gt;
                |symbol = _symbol_&lt;br /&gt;
                |val = _significand of value_&lt;br /&gt;
                |un1 = _standard uncertainty in significand of value_&lt;br /&gt;
                |unc = _(standard uncertainty digits for concise form) OR blank if exact_&lt;br /&gt;
                |end = _additional characters trailing significand_&lt;br /&gt;
                |exp = _exponent of value_&lt;br /&gt;
                |unit = _unit of value_&lt;br /&gt;
                |runc = _significand of relative standard uncertainty_&lt;br /&gt;
                |rexp = _exponent of relative standard uncertainty_&lt;br /&gt;
                |ref = _reference footnote content_&lt;br /&gt;
    }}&lt;br /&gt;
&amp;lt;/syntaxhighlight&amp;gt;&lt;/div&gt;</summary>
		<author><name>imported&gt;Quondum</name></author>
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