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ទំព័រគំរូ:Round/doc

ពីវិគីភីឌា

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}}     gives ៥៤.៣៨
  • {{Round|54.376|-1}}   gives ៥០
  • {{Round|68.4273E12|-10}} gives ៦.៨៤៣×10១៣

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 1×10−4.

Examples:

  • {{Round|2.0004|3}} gives ២�000
    • whereas {{#expr:2.0004 round 3}} gives 2
  • {{Round|0.000020004|7}} gives ២�00×10−៥
  • {{Round|0|8}} gives ០�00000000
  • {{Round|154268|-3}} gives ១៥៤០០០
  • {{Round|154568|-3}} gives ១៥៥០០០
  • {{Round|1200004|-1}} → ១២០០០០០
  • {{Round|1300004|-1}} → ១៣០០០០០
  • {{Round|4.1e6|9}} → ៤១០០០០០�000000000
  • {{Round|4.1e6|10}} → ៤១០០០០០�0000000000
  • {{Round|1542689271|-7}} → ១.៥៤×10
  • {{Round|1542689271|2}} → ១.៥៤២៦៨៩២៧១00×10
  • {{Round|7e9|-9}} → ៧×10
  • {{Round|-123|1}} → −១២៣�0
  • {{Round|-1200007|-2}} → −១២០០០០០
  • {{Round|-1234567899|-7}} → −១.២៣×10

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

  • {{Round|1234567890.123456789|10}} → ១.២៣៤៥៦៧៨៩០១២៣៥×10
  • {{Round|123456789.0123456789|10}} → ១២៣៤៥៦៧៨៩.០១២៣៥
  • {{Round|.0001234567890123456789|20}} → ០.០០០១២៣៤៥៦៧៨៩០១២៣៥
The second parameter, precision, should be an integer. Non-integer may give unexpected result.
  • {{Round|1.234567}} → ១
  • {{Round|1.234567|2}} → ១.២៣
  • {{Round|1.234567|2.3}} → ១.២៣២៩២០៥៩៤៧២៣១
  • {{Round|1.234567|2.7}} → ១.២៣៥០៦៧៣៧២៩៦៥៧

Internal details

[កែប្រែ]

The markup-based version of Template:Round uses three subtemplates:

  • {{Round/-}} — for trailing zeros
  • {{Round/e+}} — for scientific notation for numbers greater than or equal to 109 or less than or equal to −109
  • {{Round/e−}} — for scientific notation for numbers greater than −10−4 and less than 10−4 but not equal to zero

The Lua-based version of {{Round}} uses Module:Math and always has an expansion depth of 3. However, the markup-based version has an expansion depth of 9–15, which depends on the size of the numbers (integer results use depth 9, decimals use depth 12), where astronomical numbers can hit expansion depth of 15 levels, for {{Round|56.44e33|-32}} → 5.64 × 1034.

TemplateData

[កែប្រែ]

This is the TemplateData documentation for the template used by the new VisualEditor.

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

ParameterDescriptionTypeStatus
number1

The number to be rounded

Numberrequired
decimal places2

The number of decimal places, if negative the number is rounded so the last (parameter 2) digits are zero

Numberrequired

Maintenance categories

[កែប្រែ]