Template:Round: Difference between revisions

Browse history interactively ← Previous edit Next edit →Content deleted Content addedVisual WikitextInline

Revision as of 18:49, 8 September 2012 view sourceRuslik0 (talk \| contribs)Edit filter managers, Administrators54,835 edits attempting to fix the pdf problem← Previous edit		Revision as of 20:23, 22 February 2013 view source Dragons flight (talk \| contribs)Edit filter managers, Extended confirmed users, Rollbackers, Template editors25,792 edits convert to Lua versionNext edit →
Line 1:		Line 1:
	<includeonly>{{#~~iferror~~:~~{{#expr:{{{2}}}}}~~\|~~{{rndnear~~\|{{{1}}}\|~~1E{{#expr:{{order~~ ~~of magnitude\|~~{{{1}}}}}~~-1}}}}\|{{formatnum:~~		<includeonly>{{#invoke:Math\|precision_format\| {{{1}}} \| {{{2}}}}}</includeonly><noinclude>
	{{#ifexpr:({{{1\|0}}})round({{{2\|0}}})>=0.0001
	\|{{#ifexpr:({{{1}}})round({{{2}}})<1E9
	\|{{#ifexpr:<!--
	-->{{#expr:(({{{1}}})round({{{2}}})/1E5round0)*1E5}}={{#expr:({{{1}}})round({{{2}}})}}
	\|{{#ifexpr:{{{2}}}<=0
	\|{{#expr:({{{1}}})round({{{2}}})E-5}}00000
	\|{{#expr:({{{1}}})round({{{2}}})E-5}}0000{{rnd/-\|0\|{{{2}}}}}
	}}
	\|{{#ifexpr:{{{2}}}<=0
	\|{{#expr:({{{1}}})round({{{2}}})}}
	\|{{rnd/-\|{{#expr:({{{1}}})round({{{2}}})}}\|{{{2}}}}}
	}}
	}}
	\|{{rnd/e+
	\|{{#expr:({{{1}}})round({{{2}}})}}
	\|{{{2}}}
	\|{{Order of magnitude\|{{#expr:({{{1}}})round({{{2}}})}}}}}}
	}}
	\|{{#ifexpr:({{{1\|0}}})round({{{2\|0}}})<=-0.0001
	\|{{#ifexpr:({{{1}}})round({{{2}}})>-1E9
	\|{{#ifexpr:<!--
	-->{{#expr:(({{{1}}})round({{{2}}})/1E5round0)*1E5}}={{#expr:({{{1}}})round({{{2}}})}}
	\|{{#ifexpr:{{{2}}}<=0
	\|−{{#expr:-({{{1}}})round({{{2}}})E-5}}00000
	\|−{{#expr:-({{{1}}})round({{{2}}})E-5}}0000{{rnd/-\|0\|{{{2}}}}}
	}}
	\|{{#ifexpr:{{{2}}}<=0
	\|−{{#expr:-({{{1}}})round({{{2}}})}}
	\|−{{rnd/-\|-{{#expr:({{{1}}})round({{{2}}})}}\|{{{2}}}}}
	}}
	}}
	\|−{{rnd/e+
	\|-{{#expr:({{{1}}})round({{{2}}})}}
	\|{{{2}}}
	\|{{Order of magnitude\|{{#expr:({{{1}}})round({{{2}}})}}}}}}
	}}
	\|{{#ifexpr:({{{1\|0}}})round({{{2\|0}}})=0
	\|{{#ifexpr:{{{2\|0}}}<=0
	\|0
	\|{{rnd/-\|0\|{{{2}}}}}
	}}
	\|{{#ifexpr:({{{1}}})round({{{2}}})>0
	\|{{rnd/e−
	\|{{#expr:({{{1}}})round({{{2}}})}}
	\|{{{2}}}
	\|{{Order of magnitude\|({{{1}}})round({{{2}}})}}
	}}
	\|−{{rnd/e−
	\|-{{#expr:({{{1}}})round({{{2}}})}}
	\|{{{2}}}
	\|{{Order of magnitude\|{{#expr:({{{1}}})round({{{2}}})}}}}
	}}
	}}
	}}
	}}
	}}
	}}}}</includeonly><noinclude>
	{{documentation}}		{{documentation}}
	</noinclude>		</noinclude>

Revision as of 20:23, 22 February 2013

Template documentation[view] [edit] [history] [purge] Shortcut

{{rnd}}

This template is used on approximately 325,000 pages, or roughly 1% of all pages.
To avoid major disruption and server load, any changes should be tested in the template's /sandbox or /testcases subpages, or in your own user subpage. The tested changes can be added to this page in a single edit. Consider discussing changes on the talk page before implementing them.

This template uses Lua:

Module:Math (sandbox)

Usage

This template rounds parameter 1 by parameter 2 decimal places (goes the other way for negative rounding) and includes trailing zeros.

{{Round|54.376|2}} → 54.38
{{Round|54.376|-1}} → 50
{{Round|68.4273E12|-10}} → 6.843×10

For example, rounding by 1 gives 1 decimal digit, rounding by 0 gives integers, or rounding by -2 gives the amount in hundreds. Scientific notation is displayed for numbers greater than or equal to 1×10, or less than 1×10.

Examples

{{Round|2.0004|3}} → 2.000
- {{expr:2.0004 round 3}} → 2
{{Round|0.000020004|7}} → 000
{{Round|0|8}} → 0.00000000
{{Round|154268|-3}} → 154,000
{{Round|154568|-3}} → 155,000
{{Round|1200004|-1}} → 1,200,000
- whereas {{expr:1200004round-1}} → 1200000, even though {{expr:1300004round-1}} → 1300000 (see m:Help:Format produced by expr)
{{Round|1300004|-1}} → 1,300,000
{{Round|4.1e6|9}} → 4,100,000.000000000
{{Round|4.1e6|10}} → 4,100,000.0000000000
{{Round|1542689271|-7}} → 1.54×10
{{Round|1542689271|2}} → 1.54268927100×10
{{Round|7e9|-9}} → 7×10
{{Round|-123|1}} → −123.0
{{Round|-1200007|-2}} → −1,200,000
{{Round|-1234567899|-7}} → −1.23×10

As with #expr, the total number of significant digits is not more than 14:

{{Round|1234567890.123456789|10}} → 1.2345678901235×10
{{Round|123456789.0123456789|10}} → 123,456,789.01235
{{Round|.0001234567890123456789|20}} → 0.00012345678901235

The second parameter, precision, should be an integer. Non-integer may give unexpected result.

{{Round|1.234567}} → Formatting error: invalid input when rounding
{{Round|1.234567|2}} → 1.23
{{Round|1.234567|2.3}} → 1.2329205947231
{{Round|1.234567|2.7}} → 1.2350673729657

Non-numeric input will result in an error message.

{{Round|invalid}} → Formatting error: invalid input when rounding

TemplateData

This is the TemplateData for this template used by TemplateWizard, VisualEditor and other tools. See a monthly parameter usage report for Template:Round in articles based on its TemplateData.

TemplateData for Round

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.

Template parameters
Parameter		Description	Type	Status
number	`1`	The number to be rounded	Number	required
decimal places	`2`	The number of decimal places, if negative the number is rounded so the last (parameter 2) digits are zero	Number	suggested

Maintenance categories

Category:Pages with bad rounding precision (0)

Misplaced Pages