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Template:Round/doc - Revision history
2026-04-17T13:33:36Z
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TheRandomMelon: 1 revision imported
2025-05-07T17:04:36Z
<p>1 revision imported</p>
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TheRandomMelon
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Wikipedia>Eyesnore: /* TemplateData */
2024-07-11T14:54:55Z
<p><span dir="auto"><span class="autocomment">TemplateData</span></span></p>
<p><b>New page</b></p><div>{{Documentation subpage}}{{template shortcut|rnd}}<br />
<!-- PLEASE ADD CATEGORIES AT THE BOTTOM OF THIS PAGE. --><br />
{{high-use|263614}}<br />
{{lua|Module:Math}}<br />
<br />
==Usage==<br />
This template rounds parameter 1 by parameter 2 decimal places (goes the other way for negative rounding) and includes trailing zeros.<br />
* {{tlc|{{BASEPAGENAME}}|54.376|2|_show_result=yes}}<br />
* {{tlc|{{BASEPAGENAME}}|54.376|-1|_show_result=yes}}<br />
* {{tlc|{{BASEPAGENAME}}|68.4273E12|-10|_show_result=yes}}<br />
For example, rounding by 1 gives 1 decimal digit, rounding by&nbsp;0 gives integers, or rounding by&nbsp;-2 gives the amount in hundreds. [[Scientific notation]] is displayed for numbers greater than or equal to 1{{e|9}}, or less than 1{{e|−4}}.<br />
<br />
===Examples===<br />
*{{tlc|{{BASEPAGENAME}}|2.0004|3|_show_result=yes}}<br />
** {{Pf|expr:2.0004 round 3}} → {{#expr:2.0004 round 3}}<br />
*{{tlc|{{BASEPAGENAME}}|0.000020004|7|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|0|8|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|154268|-3|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|154568|-3|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1200004|-1|_show_result=yes}}<br />
**whereas {{pf|expr:1200004round-1}} → {{#expr:1200004round-1}}, even though {{pf|expr:1300004round-1}} → {{#expr:1300004round-1}} (see [[m:Help:Format produced by expr]]) <br />
*{{tlc|{{BASEPAGENAME}}|1300004|-1|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|4.1e6|9|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|4.1e6|10|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1542689271|-7|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1542689271|2|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|7e9|-9|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|-123|1|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|-1200007|-2|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|-1234567899|-7|_show_result=yes}}<br />
As with #expr, the total number of significant digits is not more than 14:<br />
*{{tlc|{{BASEPAGENAME}}|1234567890.123456789|10|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|123456789.0123456789|10|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|.0001234567890123456789|20|_show_result=yes}}<br />
<br />
;The second parameter, precision, should be an integer. Non-integer may give unexpected result.<br />
*{{tlc|{{BASEPAGENAME}}|1.234567|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1.234567|2|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1.234567|2.3|_show_result=yes}}<br />
*{{tlc|{{BASEPAGENAME}}|1.234567|2.7|_show_result=yes}}<br />
<br />
;Non-numeric input will result in an error message.<br />
*{{tlc|{{BASEPAGENAME}}|invalid|_show_result=yes}}<br />
<br />
==TemplateData==<br />
{{TemplateDataHeader}}<br />
<templatedata>{<br />
"description": "Rounds (parameter 1) by (parameter 2) decimal places, and formats. Scientific notation is used for numbers greater than 1×10^9, or less than 1×10^−4.",<br />
"params": {<br />
"1": {<br />
"label": "number",<br />
"description": "The number to be rounded",<br />
"type": "number",<br />
"required": true<br />
},<br />
"2": {<br />
"label": "decimal places",<br />
"description": "The number of decimal places, if negative the number is rounded so the last (parameter 2) digits are zero",<br />
"type": "number",<br />
"suggested": true<br />
}<br />
}<br />
}</templatedata><br />
<br />
==Maintenance categories==<br />
*{{clc|Pages with bad rounding precision}}<br />
<br />
==See also==<br />
*{{tl|Rounded calculation}}<br />
*{{tl|Significant figures}}<br />
*{{tl|Roundup}}<br />
*{{tl|Rounddown}}<br />
<br />
<includeonly>{{basepage subpage|<!--<br />
++++ PLEASE ADD CATEGORIES BELOW THIS LINE, THANK YOU. --><br />
[[Category:Mathematical function templates]]<br />
[[Category:Templates that add a tracking category]]<br />
}}</includeonly></div>
Wikipedia>Eyesnore