Testwiki:Manual of Style/Dates and numbers

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ಟೆಂಪ್ಲೇಟು:Style-guideline ಟೆಂಪ್ಲೇಟು:Style This part of the Manual of Style helps editors to achieve consistency in the use and formatting of numbers, dates, times, measurements, currencies, and coordinates in Wikipedia articles. Consistency in style and formatting promotes clarity and cohesion; this is especially important within an article. The goal is to make the whole encyclopedia easier and more intuitive to use. Try to write so the text cannot be misunderstood, and take account of what is likely to be familiar to readers. The less that readers have to look up definitions, the easier the text will be to understand. Where this manual provides options, consistency should be maintained within an article unless there is a good reason to do otherwise. The Arbitration Committee has ruled that editors should not change an article from one guideline-defined style to another without a substantial reason unrelated to mere choice of style, and that revert-warring over optional styles is unacceptable.[] If discussion cannot determine which style to use in an article, defer to the style used by the first major contributor.

General notes

Quotations, titles, etc.

ಟೆಂಪ್ಲೇಟು:See also Quotations, titles of books and articles, and similar "imported" text should be faithfully reproduced, even if they employ formats or units inconsistent with these guidelines or with other formats in the same article. If necessary, clarify via [bracketed interpolation], article text, or footnotes.

  • It is acceptable to change other date formats in the same article to provide consistency, so long as those changes would otherwise be acceptable.

Non-breaking spaces

Guidance on the use of non-breaking spaces (also called "hard spaces"; markup: ಟೆಂಪ್ಲೇಟು:T or  ) is given in some of the sections below, though not all situations in which nbsp may be appropriate are described. ಟೆಂಪ್ಲೇಟು:T may also be useful in some situations. For further information see ಟೆಂಪ್ಲೇಟು:Section link and Wikipedia:Line-break handling.

Chronological items

Statements likely to become outdated

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also Except on pages updated regularly (e.g. current events), terms such as ಟೆಂಪ್ಲೇಟು:!xt, ಟೆಂಪ್ಲೇಟು:!xt, ಟೆಂಪ್ಲೇಟು:!xt, and ಟೆಂಪ್ಲೇಟು:!xt should usually be avoided in favor of phrases such as ಟೆಂಪ್ಲೇಟು:Xt and ಟೆಂಪ್ಲೇಟು:Xt. For future and current events, use phrases such as ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt to signal the time-dependence of the information. Or (for example) ಟೆಂಪ್ಲೇಟು:Tlc will produce the text ಟೆಂಪ್ಲೇಟು:Xt and adds the article to a category flagging it for periodic review. However, do not replace (for example) ಟೆಂಪ್ಲೇಟು:Xt with ಟೆಂಪ್ಲೇಟು:Tlc because some information (the start of 2005) would be lost; advanced features of ಟೆಂಪ್ಲೇಟು:Tlf such as {{as of|2005|alt=since the start of 2005}} can be used in such circumstances. Relative-time expressions are acceptable for very long periods, such as geological epochs: ಟೆಂಪ್ಲೇಟು:Xt

Time of day

ಟೆಂಪ್ಲೇಟು:Shortcut Context determines whether the 12- or 24-hour clock is used; in both, colons separate hours, minutes and seconds (e.g. ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt).

The numerical elements of times-of-day are figures (ಟೆಂಪ್ಲೇಟು:Xt) rather than words (ಟೆಂಪ್ಲೇಟು:!xt) though conventional terms such as ಟೆಂಪ್ಲೇಟು:Xt and ಟೆಂಪ್ಲೇಟು:Xt are acceptable (taking care, with the latter, to avoid possible date ambiguity in constructions such as midnight on July 17).

Time zones

ಟೆಂಪ್ಲೇಟು:ShortcutGive dates and times appropriate to the time zone where an event took place. For example, the date of the attack on Pearl Harbor should be Decemberಟೆಂಪ್ಲೇಟು:Nbsp7, 1941 (Hawaii time/ಟೆಂಪ್ಲೇಟು:Zwspdate). Give priority to the place at which the event had its most significant effects; for example, if a hacker based in Japan attacked a Pentagon computer in the US, use the time zone for the Pentagon, where the attack had its effect. In some cases the best solution may be to add the date and time in Coordinated Universal Time (UTC). For example:

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt

Alternatively, include just the UTC offset:

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt

Rarely, the time zone in which a historical event took place has since changed; for example, China to 1949 was divided into five time zones, whereas all of modern China is UTC+8. Similarly, the term "UTC" is not appropriate for dates before this system was adopted in 1961; Universal Time (UT) is the appropriate term for the mean time at the prime meridian (Greenwich) when it is unnecessary to specify the precise definition of the time scale. Be sure to show the UTC or offset appropriate to the clock time in use at the time of the event, not the modern time zone, if they differ.

Dates and years

ಟೆಂಪ್ಲೇಟು:Shortcut These requirements do not apply to dates in quotations or titles. Special rules apply to citations; see ಟೆಂಪ್ಲೇಟು:Section link.

Formats

Date formats
Acceptable date formats
General use ಟೆಂಪ್ಲೇಟು:Nowrap ಟೆಂಪ್ಲೇಟು:Small Comments
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Xt A comma follows the year unless followed by other punctuation:[] ಟೆಂಪ್ಲೇಟು:Unordered list
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Xt Omit year only where there is no risk of ambiguity: ಟೆಂಪ್ಲೇಟು:Unordered list
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Xt
No equivalent for general use ಟೆಂಪ್ಲೇಟು:Xt Use only with Gregorian dates between 1583 andಟೆಂಪ್ಲೇಟು:Nbsp9999[]

ಟೆಂಪ್ಲೇಟು:Shortcutಟೆಂಪ್ಲೇಟು:Anchorಟೆಂಪ್ಲೇಟು:Anchor

ಟೆಂಪ್ಲೇಟು:Anchorಟೆಂಪ್ಲೇಟು:Shortcut

Unacceptable date formats (except in external titles and quotes)
Acceptable Unacceptable Comments
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Small ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:Nowrap
Do not use 1st, 2nd, 3rd,ಟೆಂಪ್ಲೇಟು:Nbspetc.
ಟೆಂಪ್ಲೇಟು:!xt Do not add a dot to theಟೆಂಪ್ಲೇಟು:Nbspday
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
Do not "zero-pad" month or day, except in all-numeric ಟೆಂಪ್ಲೇಟು:Nowrap
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt Do not use separators other thanಟೆಂಪ್ಲೇಟು:Nbsphyphen
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
Do not use ಟೆಂಪ್ಲೇಟು:Nowrap or ಟೆಂಪ್ಲೇಟು:Nowrap formats, as they are ambiguous for ಟೆಂಪ್ಲೇಟು:Nowrap
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
Do not use theseಟೆಂಪ್ಲೇಟು:Nbspformats
ಟೆಂಪ್ಲೇಟು:!xt No comma between month andಟೆಂಪ್ಲೇಟು:Nbspyear
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt Comma required between day andಟೆಂಪ್ಲೇಟು:Nbspyear
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt Do not use an apostrophe to abbreviateಟೆಂಪ್ಲೇಟು:Nbspyear
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt Roman numerals are not normally used forಟೆಂಪ್ಲೇಟು:Nbspdates
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt Years and days of the month are not normally written inಟೆಂಪ್ಲೇಟು:Nbspwords
ಟೆಂಪ್ಲೇಟು:Nowrap ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt Use "in the year" only where needed for clarity ಟೆಂಪ್ಲೇಟು:Nowrap

Note to table: ಟೆಂಪ್ಲೇಟು:Reflist

Consistency

ಟೆಂಪ್ಲೇಟು:Shortcut

For example, a single article might contain either:
ಟೆಂಪ್ಲೇಟು:Xt, or
ಟೆಂಪ್ಲೇಟು:Xt
but not both:
ಟೆಂಪ್ಲೇಟು:!xt, and
ಟೆಂಪ್ಲೇಟು:!xt
  • Access and archive dates in an article's citations should all use the same format, which may be:
For example, a single article might contain either:
ಟೆಂಪ್ಲೇಟು:Xt, or
ಟೆಂಪ್ಲೇಟು:Xt
but not more than one of:
ಟೆಂಪ್ಲೇಟು:!xt,
ಟೆಂಪ್ಲೇಟು:!xt, and
ಟೆಂಪ್ಲೇಟು:!xt
Strong national ties to a topic

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also

  • Articles on topics with strong ties to a particular English-speaking country should generally use the more common date format for that nation. For the United States, this is month before day; for most others, it is day before month. Articles related to Canada may use either format consistently.
  • Sometimes the customary format differs from the usual national one: for example, articles on the modern US military use day before month, in accordance with military usage.
Retaining existing format

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also

  • If an article has evolved using predominantly one format, the whole article should conform to it, unless there are reasons for changing it based on strong national ties to the topic or consensus on article talk.
  • The date format chosen by the first major contributor in the early stages of an article should continue to be used, unless there is reason to change it based on strong national ties to the topic or consensus on article talk.
  • Where an article has shown no clear sign of which format is used, the first person to insert a date is equivalent to "the first major contributor".

Era style

ಟೆಂಪ್ಲೇಟು:Shortcut

Julian and Gregorian calendars

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also A date can be given in any appropriate calendar, as long it is (at the minimum) given in the Julian calendar or the Gregorian calendar or both, as described below. For example, an article on the early history of Islam may give dates in both Islamic and Julian calendars. Where a calendar other than the Julian or Gregorian is used, the article must make this clear.

The dating method used should follow that used by reliable secondary sources (or if reliable sources disagree, that used most commonly, with an explanatory footnote). At some places and times, the new year began on a date other than 1ಟೆಂಪ್ಲೇಟು:NbspJanuary. For example, in England and its colonies until 1752, the year began on Annunciation Day, 25ಟೆಂಪ್ಲೇಟು:NbspMarch; see the New Year article for other styles. In writing about historical events, however, years should be assumed to have begun on 1ಟೆಂಪ್ಲೇಟು:NbspJanuary (see the example of the execution of Charles I in "Differences in the start of the year"); if there is reason to use another start-of-year date, this should be noted. If there is a need to mention Old or New Style dates in an article (as in the Glorious Revolution), a footnote should be provided on the first usage, stating whether the New Style refers to a start of year adjustment or to the Gregorian calendar (it can mean either).

Ranges

ಟೆಂಪ್ಲೇಟು:Shortcut

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Nobr)
ಟೆಂಪ್ಲೇಟು:Hanging indent
But both years are given in full in the following cases:
Markup: 1011ಟೆಂಪ್ಲೇಟು:T922ಟೆಂಪ್ಲೇಟು:TBC
ಟೆಂಪ್ಲೇಟು:Hanging indent
Notes:
  • Other "pure" ranges use an unspaced en dash as well:
  • If either or both of the items being linked are in a "mixed" format (containing two or more of month, day, year) a spaced en dash (ಟೆಂಪ್ಲೇಟು:T) is used:
ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:Hanging indent
ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:Hanging indent
Or use an en dash: ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt.

Use date mathematics templates for age calculations in infoboxes and so on; see Wikipedia:Manual of Style/Biographies.

Uncertain, incomplete, or approximate dates

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
  • Where both endpoints of a range are approximate, c. should appear before each date:
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
  • Where birth/death dates have been extrapolated from known dates of activity:
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
The linked forms should not be used on disambiguation pages, and "active" followed by the range is a better alternative for artists, soldiers and other persons with an occupation.
  • When a date is known to be either of two years (e.g. from a regnal or AH year conversion, or a known age at death):
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt

Other periods

Days of the week

Months

ಟೆಂಪ್ಲೇಟು:Shortcut

Seasons

ಟೆಂಪ್ಲೇಟು:Shortcut

Decades

ಟೆಂಪ್ಲೇಟು:Shortcut

  • For a social era or cultural phenomenon associated with a particular decade:

Centuries and millennia

ಟೆಂಪ್ಲೇಟು:Shortcut

  • See WP:ENDASH for use of hyphens and dashes in obscure situations.

Abbreviations for long periods of time

  • When the term is frequent, combine the abbreviations "yr" for "years" and "ya" for "years ago" with prefixes "k" for "thousand" (kya, kyr), "m" for "million" (mya, myr), and "b" for "billion" (bya, byr).
  • In academic contexts, annum-based units are often used: "ka" (kiloannum), "Ma" (megaannum) and "Ga" (gigaannum). Some authorities, such as the British Museum, simply spell out "years ago".
  • For any of these abbreviations, show the meaning parenthetically on first occurrence and again where use is extensive,ಟೆಂಪ್ಲೇಟು:Huh or might be a standalone topic of interest. For source quotations use square brackets, as in ಟೆಂಪ್ಲೇಟು:Xt

Numbers

Numbers as figures or words

ಟೆಂಪ್ಲೇಟು:Shortcut See also information on specific situations, elsewhere in this guideline. Generally, in article text:

  • billion and trillion are understood to represent their short-scale values of 109ಟೆಂಪ್ಲೇಟು:Nbsp(1,000,000,000) and 1012ಟೆಂಪ್ಲೇಟು:Nbsp(1,000,000,000,000), respectively.
  • M (unspaced) and bn (unspaced) may be used for million and billion after spelling out the first occurrence (e.g. ಟೆಂಪ್ಲೇಟು:Xt).
  • SI prefixes and symbols, such as giga- (G) and tera- (T), should be restricted to use in scientific and engineering expressions.
  • Sometimes, the variety of English used in an article may call for the use of a numbering system other than the Western thousands-based system. For example, the South Asian numbering system is conventionಟೆಂಪ್ಲೇಟು:Shyally used in South Asian English. In those situations, link the first spelled-out instance of each quantity (e.g. [[crore]], which yields crore). (If no instances are spelled out, provide a note after the first instance directing the reader to the article about the numbering system.) Also, provide a conversion to Western numbers for the first instance of each quantity, and provide conversions for subsequent instances if they do not overwhelm the content of the article. For example, write ಟೆಂಪ್ಲೇಟು:Xt. Group digits in Western thousands-based style (e.g., ಟೆಂಪ್ಲೇಟು:Xt; not ಟೆಂಪ್ಲೇಟು:!xt): see ಟೆಂಪ್ಲೇಟು:Section link below. (Note that the variety of English does not uniquely determine the method of numbering in an article. Other considerations, such as conventions used in mathematics, science and engineering, may also apply, and the choice and order of formats and conversions is a matter of editorial discretion and consensus.)

ಟೆಂಪ್ಲೇಟು:Anchorಟೆಂಪ್ಲೇಟು:Shortcut Notes and exceptions:

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:!xt.
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt (even though 3 would normally be given as three) or ಟೆಂಪ್ಲೇಟು:Xt (even though two hundred six would normally be given as 206), not ಟೆಂಪ್ಲೇಟು:!xt

ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Xt;ಟೆಂಪ್ಲೇಟು:Nbsp

  • Avoid beginning a sentence with figures:
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 Not ಟೆಂಪ್ಲೇಟು:!xt, but ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt.
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 Not ಟೆಂಪ್ಲೇಟು:Nowrap (nor ಟೆಂಪ್ಲೇಟು:Nowrapಟೆಂಪ್ಲೇಟು:Snd because comparable numbers should be both written in words or both in figures) but ಟೆಂಪ್ಲೇಟು:Nowrap

ಟೆಂಪ್ಲೇಟು:Shortcut

Ordinals

Fractions

ಟೆಂಪ್ಲೇಟು:Shortcut

ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 12ಟೆಂಪ್ಲೇಟು:Nbsp Markup: <math>\textstyle\frac{1}{2}</math>
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xtಟೆಂಪ್ಲೇಟು:Nbsp Markup: {{sfrac|2}}
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xtಟೆಂಪ್ಲೇಟು:Nbsp Markup: 1/2

Decimals

ಟೆಂಪ್ಲೇಟು:Shortcut

Grouping of digits

Delimiting style should be consistent throughout a given article. Markup: Templates ಟೆಂಪ್ಲೇಟು:T, ಟೆಂಪ್ಲೇಟು:T and ಟೆಂಪ್ಲೇಟು:T may be useful in grouping digits. Use of hard-coded spaces, such as the regular space character, the non-breaking space (&nbsp;), and the thin space (&thinsp; or ಟೆಂಪ್ಲೇಟು:T), is problematic for screen readers because they read out each group of digits as separate numbers (e.g. ಟೆಂಪ್ಲೇಟು:Xt is read as "thirty zero zero zero").

Percentages

ಟೆಂಪ್ಲೇಟು:Shortcut

Scientific and engineering notation

Markup: ಟೆಂಪ್ಲೇಟು:T and ಟೆಂಪ್ಲೇಟು:T may be used to format exponential notation.

Uncertainty and rounding

ಟೆಂಪ್ಲೇಟು:Shortcut

  • Where explicit uncertainty information (such as a "margin of error") is available and appropriate for inclusion, it may be written in various ways:
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xtಟೆಂಪ್ಲೇಟು:Nbsp
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt (not used with scientific notation)
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xtಟೆಂಪ್ಲೇಟು:Nbsp
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt (equivalent to ಟೆಂಪ್ಲೇಟು:Val)[]
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt
Markup: ಟೆಂಪ್ಲೇಟು:T, ಟೆಂಪ್ಲೇಟು:T, and ಟೆಂಪ್ಲೇಟು:T may be used to format uncertainties.
  • Where explicit uncertainty is unavailable (or is unimportant for the article's purposes) round to an appropriate number of significant digits; the precision presented should usually be conservative. Precise values (often given in sources for formal or matter-of-record reasons) should be used only where stable and appropriate to the context, or significant in themselves for some special reason.
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
but ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xtಟೆಂಪ್ಲೇಟು:Mdashban official figure unlikely to be accurate at full precision)
but ಟೆಂಪ್ಲೇಟು:Xt (Unusual case in which the full-precision official population figure is helpful to readers.)
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (Likely that accurate and precise figures were determined.)
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (Unlikely that any precise number can be accurate, even if an official figure is issued.)
or ಟೆಂಪ್ಲೇಟು:Xt (In reporting conflicting information, give detail sufficient to make the contrast intelligible.)
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (where the actual figure was $8,462,247.63)ಟೆಂಪ್ಲೇಟು:Xt
  • It may sometimes be appropriate to note the lack of uncertainty information, especially where such information is normally provided and necessary for full interpretation of the figures supplied.
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt
  • The ಟೆಂಪ್ಲೇಟು:Tl template may be added to figures appearing to be overprecise.
  • Avoid using "approximately", "about and similar terms with figures that have merely been approximated or rounded in a normal and expected way, unless the reader might otherwise be misled.
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5 ಟೆಂಪ್ಲೇಟು:Xt (ಟೆಂಪ್ಲೇಟು:Nobrಟೆಂಪ್ಲೇಟು:Mdashbheights are conventionally reported only to the nearest inch, even though greater precision may be available in principle).
but ಟೆಂಪ್ಲೇಟು:Xt.

Non-base-10 notations

ಟೆಂಪ್ಲೇಟು:Shortcut

Units of measurement

ಟೆಂಪ್ಲೇಟು:Shortcut

Choice of units

Quantities are typically expressed using an appropriate "main" unit, in some cases followed by a conversion to other units in parentheses. For use of such conversions, see ಟೆಂಪ್ಲೇಟು:Section link below.

Special considerations:

  • Quantities set via definition (as opposed to measured quantities) should be given first in the units used in the definition, even if this makes the structure of presentation inconsistent: ಟೆಂಪ್ಲೇಟು:Xt.
    • This may benefit from a slightly non-standard structure, such as ಟೆಂಪ್ಲೇಟು:Xt. In this sort of case, using "about" can help make clear which is the statutory, exact value.
  • Nominal quantities (e.g. ಟೆಂಪ್ಲೇಟು:Nowrap lumber) require consideration of whether the article is concerned with the item's actual dimensions or merely with its function. In some cases only the nominal quantity may suffice; in others it may be necessary to give the nominal size (often in non-SI units), the actual size in non-SI units, and the actual size in SI units.
  • Where the primary units in the article are different from the primary units in the source, ensure that the precision of the converted quantity in the article is comparable to the precision of the quantity from the source (see ಟೆಂಪ್ಲೇಟು:Section link below). The ಟೆಂಪ್ಲೇಟು:Tl template has a |disp=flip flag, which tells it to treat the converted unit as primary and the original unit as secondary, for use in such situations.

Unit names and symbols

Definitions:
  • Examples of unit names: foot, meter, kilometer.
  • Examples of unit symbols: ft, m, km.
  • Unit names and symbols should follow the practice of reliable sources.
  • In prose, unit names should be given in full if used only a few times, but symbols may be used when a unit (especially one with a long name) is used repeatedly, after spelling out the first use (e.g. ಟೆಂಪ್ಲೇಟು:Xt).
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:Nobr or ಟೆಂಪ್ಲೇಟು:Nobr
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt
Unit names and symbols—General guidelines
Aspect Guideline Acceptable Unacceptable
Spelling The spelling of certain unit names (some of which are listed in ಟೆಂಪ್ಲೇಟು:Section link, below) varies with the variety of English followed by the article.
Format Do not spell out numbers before unit symbolsಟೆಂಪ್ಲೇಟು:Nbsp... ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
...ಟೆಂಪ್ಲೇಟು:Nbspbut words or numerals may be used with unit names. ಟೆಂಪ್ಲೇಟು:Plainlist
Values not accompanied by units are usually given in figures. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Write unit names and symbols in upright roman type. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Unit names are given in lower case except: where any word would be capitalಟೆಂಪ್ಲೇಟು:Shyized; where otherwise specified in the SI brochure; where otherwise specified in this Manual of Style.ಟೆಂಪ್ಲೇಟು:Clarify ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:!xt
Except as listed in the "Specific units" table below, unit symbols are uncapiಟೆಂಪ್ಲೇಟು:Shytalಟೆಂಪ್ಲೇಟು:Shyized unless they are derived from a proper name, in which case the first letter (of the base unit name, not of any prefix) is capitalized.[] ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Unit symbols are undotted. ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
Except as shown in the "Specific units" table below, a space appears between a numeric value and a unit name or symbol. In the case of unit symbols, &nbsp; (or ಟೆಂಪ್ಲೇಟು:Tlಟೆಂಪ್ಲೇಟು:Px1) should be used to prevent linebreak. ಟೆಂಪ್ಲೇಟು:Xt
Markup: 29&nbsp;kg
ಟೆಂಪ್ಲೇಟು:!xt
To form a value and a unit name into a compound adjective use a hyphen or hyphensಟೆಂಪ್ಲೇಟು:Nbsp... ಟೆಂಪ್ಲೇಟು:Plainlist
... but a non-breaking space (never hyphen) separates a value and unit symbol. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:!xt
Plurals SI unit names are pluralized by adding s or es... ಟೆಂಪ್ಲೇಟು:Xt, ಟೆಂಪ್ಲೇಟು:Xt
... except for these irregular forms. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Some non-SI units have irregular plurals. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Unit symbols (in any system) are identical in singular and plural. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Nobr
Powers Format exponents using <sup>, not special characters. ಟೆಂಪ್ಲೇಟು:Xt
Markup: km<sup>2</sup>
ಟೆಂಪ್ಲೇಟು:!xt
Markup: km&#178;
Or use squared or cubed (after the unit being modified). ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
For areas or volumes only, square or cubic may be used (before the unit being modified). ಟೆಂಪ್ಲೇಟು:!xt
ಟೆಂಪ್ಲೇಟು:Xt
The abbreviations sq and cu may be used for US customary and imperial units but not for SI units. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Products Indicate a product of unit names with either a hyphen or a space. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Indicate a product of unit symbols with &middot; or &nbsp; (Note: ಟೆಂಪ್ಲೇಟು:T is not equivalent to &middot;.) ಟೆಂಪ್ಲೇಟು:Plainlist
Exception: In some topic areas such as power engineerಟೆಂಪ್ಲೇಟು:Shying, certain products take neither space nor &middot;. Follow the practice of reliable sources in the article's topic area. ಟೆಂಪ್ಲೇಟು:Plainlist
To pluralize a product of unit names, pluralize only the final unit. (Unit symbols are never pluralized.) ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
Ratios
Rates
Densities
Indicate a ratio of unit names with per. ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt
Indicate a ratio of unit symbols with a slash (followed by either a single symbol or a parenthesized product of symbolsಟೆಂಪ್ಲೇಟು:Mdashbdo not use multiple slashes); or useಟೆಂಪ್ಲೇಟು:Nbsp−1,ಟೆಂಪ್ಲೇಟು:Nbsp−2, etc. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Plainlist
To pluralize a ratio of unit names, pluralize only the "numerator" unit. (Unit symbols are never pluralized.) ಟೆಂಪ್ಲೇಟು:Plainlist
Some of the special forms used in the imperial and US customary systems are shown hereಟೆಂಪ್ಲೇಟು:Nbsp... ಟೆಂಪ್ಲೇಟು:Plainlist
... but only the slash or negative exponent notations are used with SI (and other metric) units. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Prefixes Prefixes should not be separated by a space or hyphen. ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Plainlist
Prefixes are added without contraction, except as shown here: ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
centi-, deci-, deca-, and hecto- should be avoided; exceptions include centimetre, decibel, hectolitre, hectare, hectopascal. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:!xt
Do not use ಟೆಂಪ್ಲೇಟು:!xt for 103, MM for 106, or B for 109. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
Mixed
units
Mixed units are traditionally used with the imperial and US customary systemsಟೆಂಪ್ಲೇಟು:Nbsp ಟೆಂಪ್ಲೇಟು:Anchorಟೆಂಪ್ಲೇಟು:Plainlist
... and in expressing time durationsಟೆಂಪ್ಲೇಟು:Nbsp... ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Plainlist
… but are not normally used in SI. ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:!xt
No comma. ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:!xt

Note to table: ಟೆಂಪ್ಲೇಟು:Reflist

Specific units

  • The following table lists only units that need special attention.
  • The SI standard should be consulted for guidance on use of other SI units. "Tables 6, 7, 8, and 9" give additional guidance on non-SI units.
Guidelines on specific units
Group Name Symbol Comment
Length,
Speed
inch ಟೆಂಪ್ಲೇಟು:Xt Do not use &prime; (ಟೆಂಪ್ಲೇಟು:!xt), &Prime; (ಟೆಂಪ್ಲೇಟು:!xt), apostrophe/ಟೆಂಪ್ಲೇಟು:Zwspsingle quote (ಟೆಂಪ್ಲೇಟು:!xt) or double quote (ಟೆಂಪ್ಲೇಟು:!xt)
foot ಟೆಂಪ್ಲೇಟು:Xt
foot per second ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
hand ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt Equal to 4 inches; used in measurement of horses. A dot may be followed by additional inches e.g. 16.2 hh indicates 16 hands 2 inches.
knot ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt or ಟೆಂಪ್ಲೇಟು:!xt)
ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt
micron ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt) Markup: &mu;mಟೆಂಪ್ಲೇಟು:Nbsp Link to micrometre (for which micron is a synonym) on first use.
mile ಟೆಂಪ್ಲೇಟು:Xt In nautical and aeronautical contexts use ಟೆಂಪ್ಲೇಟು:Xt rather than mile to avoid confusion with nautical mile.
mile per hour ಟೆಂಪ್ಲೇಟು:Xt
nautical mile ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Nobr
Volume,
Flow
ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt Markup: cm<sup>3</sup>
ಟೆಂಪ್ಲೇಟು:Xt Non-SI symbol used for certain engine displacements; link to cubic centimetre on first use.
imperial fluid ounce ಟೆಂಪ್ಲೇಟು:Xt US or imperial/imp must be specified; fluid/fl must be specified, except withಟೆಂಪ್ಲೇಟು:Nbspgallon. (Without fluid, ounce is ambiguousಟೆಂಪ್ಲೇಟು:Sndversus avoirdupois ounce or troy ounceಟೆಂಪ್ಲೇಟು:Sndand pint or quart is ambiguousಟೆಂಪ್ಲೇಟು:Sndversus US dry pint or US dry quart.)
imperial fluid pint ಟೆಂಪ್ಲೇಟು:Xt
imperial fluid quart ಟೆಂಪ್ಲೇಟು:Xt
imperial gallon ಟೆಂಪ್ಲೇಟು:Xt
US fluid ounce ಟೆಂಪ್ಲೇಟು:Xt
US fluid pint ಟೆಂಪ್ಲೇಟು:Xt
US fluid quart ಟೆಂಪ್ಲೇಟು:Xt
US gallon ಟೆಂಪ್ಲೇಟು:Xt
cubic foot ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt) Write ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:!xt.
cubic foot per second ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt The symbol l in isolation (i.e. not in such forms as ml) is easily mistaken for the digit 1.
Mass,
Force,
Density,
Pressure
long ton ಟೆಂಪ್ಲೇಟು:Xt Spell out in full.
short ton ಟೆಂಪ್ಲೇಟು:Xt
pound per square inch ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Nobr
troy ounce ಟೆಂಪ್ಲೇಟು:Xt t or troy must be specified. Articles about precious metals, black powder, and gemstones should always specify whether ounces and pounds are avoirdupois or troy.
troy pound ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt
carat ಟೆಂಪ್ಲೇಟು:Xt Used to express masses of gemstones and pearls.
Purity carat or karat ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt A measure of purity for gold alloys. (Do not confuse with the unit of mass with the same spelling.)
Time second ಟೆಂಪ್ಲೇಟು:Xt Do not use &prime; (ಟೆಂಪ್ಲೇಟು:!xt), &Prime; (ಟೆಂಪ್ಲೇಟು:!xt), apostrophe (ಟೆಂಪ್ಲೇಟು:!xt) or quote (ಟೆಂಪ್ಲೇಟು:!xt) for minutes or seconds. Use m for minute only where there is no danger of confusion with meter, as in the hoursಟೆಂಪ್ಲೇಟು:Ndashminutesಟೆಂಪ್ಲೇಟು:Ndashseconds formats for time durations described in the Unit names and symbols table.
minute ಟೆಂಪ್ಲೇಟು:Xt
hour ಟೆಂಪ್ಲೇಟು:Xt
year ಟೆಂಪ್ಲೇಟು:Xt Use a only with an SI prefix (ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:!xt).
ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt

Information

bit ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Nobr See also ಟೆಂಪ್ಲೇಟು:Section link, below.
byte ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Nobr
bit per second ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
byte per second ಟೆಂಪ್ಲೇಟು:Xt or ಟೆಂಪ್ಲೇಟು:Xt ಟೆಂಪ್ಲೇಟು:Nobr
Angle
arcminute ಟೆಂಪ್ಲೇಟು:Xt Markup: &prime;ಟೆಂಪ್ಲೇಟು:Nbsp (not apostrophe/ಟೆಂಪ್ಲೇಟು:Zwspsingle quoteಟೆಂಪ್ಲೇಟು:Nbspಟೆಂಪ್ಲೇಟು:!xt). No space between numerals and symbol ಟೆಂಪ್ಲೇಟು:Nobr
arcsecond ಟೆಂಪ್ಲೇಟು:Xt Markup: &Prime;ಟೆಂಪ್ಲೇಟು:Nbsp (not double-quoteಟೆಂಪ್ಲೇಟು:Nbspಟೆಂಪ್ಲೇಟು:!xt). No space between numerals and symbol ಟೆಂಪ್ಲೇಟು:Nobr
degree ಟೆಂಪ್ಲೇಟು:Xt Markup: &deg;ಟೆಂಪ್ಲೇಟು:Nbsp (not masculine ordinal ಟೆಂಪ್ಲೇಟು:!xt or ring ಟೆಂಪ್ಲೇಟು:!xtಟೆಂಪ್ಲೇಟು:Thinsp). No space between numerals and symbol ಟೆಂಪ್ಲೇಟು:Nobr

Temperature

degree Markup: &deg;. Nonbreaking space (ಟೆಂಪ್ಲೇಟು:Tl) between numerals and symbol ಟೆಂಪ್ಲೇಟು:Nobr ಟೆಂಪ್ಲೇಟು:Nobr
degree Celsius ಟೆಂಪ್ಲೇಟು:Nobr ಟೆಂಪ್ಲೇಟು:Xt (not ಟೆಂಪ್ಲೇಟು:!xt)
Energy ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt In certain subject areas calorie is conventionಟೆಂಪ್ಲೇಟು:Shyally used alone. Articles following this practice should specify either gram calorie (or small calorie) or kilogram calorie (or large calorie) on first use; providing conversions to SI units (usually gram calories to joules and kilogram calories to kilojoules) may also be useful. A kilogram calorie is 1000 gram calories, and is therefore also a kilocalorie (ಟೆಂಪ್ಲೇಟು:Xt); other SI prefixes may be used with the gram calorie (e.g., ಟೆಂಪ್ಲೇಟು:Xt) but not with the kilogram calorie (do not use ಟೆಂಪ್ಲೇಟು:!xt or ಟೆಂಪ್ಲೇಟು:!xt).
ಟೆಂಪ್ಲೇಟು:Plainlist ಟೆಂಪ್ಲೇಟು:Xt

Quantities of bytes and bits

ಟೆಂಪ್ಲೇಟು:Shortcut In quantities of bits and bytes, the prefixes kilo (symbol k or K), mega (M), giga (G), tera (T), etc. are ambiguous. They may be based on a decimal system (like the standard SI prefixes), meaning 103, 106, 109, 1012, etc., or they may be based on a binary system, meaning 210, 220, 230, 240, etc. The binary meanings are more commonly used in relation to solid-state memory (such as RAM), while the decimal meanings are more common for data transmission rates, disk storage and in theoretical calculations in modern academic textbooks. ಟೆಂಪ್ಲೇಟು:Bit and byte prefixes Follow these recommendations when using these prefixes in Wikipedia articles:

  • Following the SI standard, a lower-case ಟೆಂಪ್ಲೇಟು:Xt should be used for "kilo-" whenever it means 1000 in computing contexts, whereas a capital ಟೆಂಪ್ಲೇಟು:Xt should be used instead to indicate the binary prefix for 1024 according to JEDEC. (If, under the exceptions detailed further below, the article otherwise uses IEC prefixes for binary units, use ಟೆಂಪ್ಲೇಟು:Xt instead).
  • Do not assume that the binary or decimal meaning of prefixes will be obvious to everyone. Explicitly specify the meaning of k and K as well as the primary meaning of M, G, T, etc. in an article (ಟೆಂಪ್ಲೇಟು:Tl is a convenient helper). Consistency within each article is desirable, but the need for consistency may be balanced with other considerations.
  • The definition most relevant to the article should be chosen as primary for that article, e.g. specify a binary definition in an article on RAM, decimal definition in an article on hard drives, bit rates, and a binary definition for Windows file sizes, despite files usually being stored on hard drives.
  • Where consistency is not possible, specify wherever there is a deviation from the primary definition.
  • Disambiguation should be shown in bytes or bits, with clear indication of whether in binary or decimal base. There is no preference in the way to indicate the number of bytes and bits, but the notation style should be consistent within an article. Acceptable examples include:
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt
ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:In5ಟೆಂಪ್ಲೇಟು:Xt

The IEC prefixes kibi-, mebi-, gibi-, etc. (symbols Ki, Mi, Gi, etc.) are rarely used, even in technical articles, so are generally not to be used except:[೧೦]

  • when the majority of cited sources on the article topic use IEC prefixes,
  • in a direct quote using the IEC prefixes,
  • when explicitly discussing the IEC prefixes,
  • in articles in which both types of prefix are used with neither clearly primary, or in which converting all quantities to one or the other type would be misleading or lose necessary precision, or declaring the actual meaning of a unit on each use would be impractical.

Unit conversions

ಟೆಂಪ್ಲೇಟು:Shortcut Where English-speaking countries use different units for the same quantity, follow the "primary" quantity with a conversion in parentheses: ಟೆಂಪ್ಲೇಟು:Xt; ಟೆಂಪ್ಲೇಟು:Xt. In science-related articles, however, supplying such conversion is not required unless there is some special reason to do so.

Currencies and monetary values

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also

Choice of currency

Currency names

Currency symbols

Format

  • Exceptions may occur in tables and infoboxes where space is limited e.g. ಟೆಂಪ್ಲೇಟು:Xt. It may be appropriate to wikilink such uses, or add an explanatory note.

Conversions

  • Conversions of less-familiar currencies may be provided in terms of more familiar currenciesಟೆಂಪ್ಲೇಟು:Mdashbsuch as the US dollar, euro or pound sterlingಟೆಂಪ್ಲೇಟು:Mdashbusing an appropriate rate (which is often not the current exchange rate). Conversions should be in parentheses after the original currency, rounding to avoid false precision (two significant digits is usually sufficient, as most exchange rates fluctuate significantly), with at least the year given as a rough point of conversion rate reference; e.g. ಟೆಂಪ್ಲೇಟು:Xt, not ಟೆಂಪ್ಲೇಟು:!xt.
  • For obsolete currencies, provide an equivalent (formatted as a conversion) if possible, in the modern replacement currency (e.g. decimal pounds for historical pre-decimal pounds-and-shillings), or a US-dollar equivalent where there is no modern equivalent.
  • In some cases it may be appropriate to provide a conversion accounting for inflation or deflation over time. See ಟೆಂಪ್ಲೇಟು:T and ಟೆಂಪ್ಲೇಟು:T.

Common mathematical symbols

ಟೆಂಪ್ಲೇಟು:Shortcut ಟೆಂಪ್ಲೇಟು:See also

ಟೆಂಪ್ಲೇಟು:Clear right

Common mathematical symbols
Symbol name Example Markup Comments
Plus /
positive
x + y ''x'' + ''y''
+y +''y''
Minus /
negative
xy ''x'' &minus; ''y'' Do not use hyphen (ಟೆಂಪ್ಲೇಟು:!xt) or dashes (ಟೆಂಪ್ಲೇಟು:!xt ಟೆಂಪ್ಲೇಟು:Nobr
y &minus;''y''
Plus-minus /
minus-plus
41.5 ± 0.3 41.5 &plusmn; 0.3
−(±a) = ∓a &minus;(&plusmn;''a'') = &#8723;''a''
Multiplication,
cross
x × y ''x'' &times; ''y'' Do not use the letter "x" to indicate multiplication. However, an unspaced "x" may be used as a substitute for "by" in common terms such as "4x4".
Division, obelus x ÷ y ''x'' &divide; ''y''
Equal / equals x = y ''x'' = ''y''
Not equal xy ''x'' &ne; ''y''
Approx. equal ಟೆಂಪ್ಲೇಟು:Pi ≈ 3.14 {{pi}} &asymp; 3.14
Less than x < y ''x'' &lt; ''y''
L.T. or equal xy ''x'' &le; ''y''
Greater than x > y ''x'' &gt; ''y''
G.T. or equal xy ''x'' &ge; ''y''

Geographical coordinates

ಟೆಂಪ್ಲೇಟು:Shortcut
For draft guidance on, and examples of, coordinates for linear features, see Wikipedia:WikiProject Geographical coordinates/Linear.
Quick guide:

ಟೆಂಪ್ಲೇಟು:Coord how-to

Geographical coordinates on Earth should be entered using a template to standardise the format and to provide a link to maps of the coordinates. As long as the templates are adhered to, a robot performs the functions automatically. First, obtain the coordinates. Avoid excessive precision. Two types of template are available:

The following formats are available.

where:

For example: The city of Oslo, located at 59° 55′ N, 10° 44′ E, enter:

{{coord|59|55|N|10|44|E}}ಟೆಂಪ್ಲೇಟು:Mdashbwhich becomes ಟೆಂಪ್ಲೇಟು:Coord

For a country, like Botswana, less precision is appropriate:

{{coord|22|S|24|E}}ಟೆಂಪ್ಲೇಟು:Mdashbwhich becomes ಟೆಂಪ್ಲೇಟು:Coord

Higher levels of precision are obtained by using seconds:

{{coord|33|56|24|N|118|24|00|W}}ಟೆಂಪ್ಲೇಟು:Mdashbwhich becomes ಟೆಂಪ್ಲೇಟು:Coord

Coordinates can be entered as decimal values

{{coord|33.94|S|118.40|W}}ಟೆಂಪ್ಲೇಟು:Mdashbwhich becomes ಟೆಂಪ್ಲೇಟು:Coord

Increasing or decreasing the number of decimal places controls the precision. Trailing zeros should be used as needed to ensure that both values have the same level of precision. London Heathrow Airport, Amsterdam, Jan Mayen and Mount Baker are examples of articles that contain geographical coordinates. Generally, the larger the object being mapped, the less precise the coordinates should be. For example, if just giving the location of a city, precision greater than 100ಟೆಂಪ್ಲೇಟು:Nbspmeters is not needed unless specifying a particular point in the city, for example the central administrative building. Specific buildings or other objects of similar size would justify precisions down to 10ಟೆಂಪ್ಲೇಟು:Nbspmeters or even one meter in some cases (1′′ ~15ಟೆಂಪ್ಲೇಟು:Nbspm to 30ಟೆಂಪ್ಲೇಟು:Nbspm, 0.0001° ~5.6ಟೆಂಪ್ಲೇಟು:Nbspm to 10ಟೆಂಪ್ಲೇಟು:Nbspm). The final field, following the E/W, is available for attributes such as type, region and scale. When adding coordinates, please remove the ಟೆಂಪ್ಲೇಟು:Tl tag from the article, if present. For more information, see the geographical coordinates WikiProject. Templates other than ಟೆಂಪ್ಲೇಟು:Tl should use the following variable names for coordinates: ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var, ಟೆಂಪ್ಲೇಟು:Var.

See also

ಟೆಂಪ್ಲೇಟು:Math templates

Notes and references

ಟೆಂಪ್ಲೇಟು:Reflist ಟೆಂಪ್ಲೇಟು:Style wide

  1. ಟೆಂಪ್ಲೇಟು:Section link, ಟೆಂಪ್ಲೇಟು:Section link, and ಟೆಂಪ್ಲೇಟು:Section link
  2. See MOS:COMMA.
  3. All-numeric ಟೆಂಪ್ಲೇಟು:Small caps dates might be assumed to follow the ISO 8601 standard, which mandates the Gregorian calendar.
  4. This change was made August 24, 2008, on the basis of this archived discussion. It was ratified in two December 2008 RfCs Wikipedia:Manual of Style/Dates and numbers/Three proposals for change to MOSNUM and Wikipedia:Manual of Style/Dates and numbers/Date Linking RFC
  5. ಟೆಂಪ್ಲೇಟು:Section link
  6. ಟೆಂಪ್ಲೇಟು:Section link
  7. The number in parentheses is the numerical value of the standard uncertainty referred to the corresponding last digits of the quoted result – see NIST – Use of concise notation
  8. If there is disagreement about the main units used in a UK-related article, discuss the matter on the article talk-page, at MOSNUM talk, or both. If consensus cannot be reached, refer to historically stable versions of the article and retain the units used in these as the main units. Note the style guides of British publications such as The Times (see archived version, under "Metric").
  9. This definition is consistent with all units of measure mentioned in the 8th edition of the SI brochure and with all units of measure catalogued in EU directive 80/181/EEC
  10. Wikipedia follows common practice regarding bytes and other data traditionally quantified using binary prefixes (e.g. mega- and kilo-, meaning 220 and 210 respectively) and their unit symbols (e.g. MB and KB) for RAM and decimal prefixes for most other uses. Despite the IEC's 1998 International Standard creating several new binary prefixes (e.g. mebi-, kibi-) to distinguish the meaning of the decimal SI prefixes (e.g. mega- and kilo-, meaning 106 and 103 respectively) from the binary ones, and the subsequent incorporation of these IEC prefixes into the International System of Quantities (ISQ), consensus on Wikipedia in computing-related contexts currently favours the retention of the more familiar but ambiguous units "KB", "MB", "GB", "TB", "PB", "EB", etc. over use of unambiguous IEC binary prefixes. For detailed discussion, see Complete rewrite of Units of Measurements (June 2008).