Шаблон:Документация подстраниц

Материал из свободной русской энциклопедии «Традиция»
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Usage[править]

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

{{rnd|54.376|2}}     gives 54,38
{{rnd|54.376|-1}}   gives 50
{{rnd|68.4273E12|-10}} gives 6,843×1013

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 1×109, or less than 1×10−4.

Examples:

  • {{rnd|2.0004|3}} gives 2,000
    • whereas {{#expr:2.0004 round 3}} gives 2
  • {{rnd|0.000020004|7}} gives 2,00×10−5
  • {{rnd|0|8}} gives 0,00000000
  • {{rnd|154268|-3}} gives 154 000
  • {{rnd|154568|-3}} gives 155 000
  • {{rnd|1200004|-1}} → 1 200 000
  • {{rnd|1300004|-1}} → 1 300 000
  • {{rnd|4.1e6|9}} → 4 100 000,000000000
  • {{rnd|4.1e6|10}} → 4 100 000,0000000000
  • {{rnd|1542689271|-7}} → 1,54×109
  • {{rnd|1542689271|2}} → 1,54268927100×109
  • {{rnd|7e9|-9}} → 7×109
  • {{rnd|-123|1}} → −123,0
  • {{rnd|-1200007|-2}} → −1 200 000
  • {{rnd|-1234567899|-7}} → −1,23×109

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

  • {{rnd|1234567890.123456789|10}} → 1,2345678901235×109
  • {{rnd|123456789.0123456789|10}} → 123 456 789,01235
  • {{rnd|.0001234567890123456789|20}} → 0,00012345678901235

Internal details[править]

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

  • {{rnd/-}} — for trailing zeros
  • {{rnd/e+}} — for scientific notation for numbers greater than or equal to 109 or less than or equal to −109
  • {{rnd/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 {{rnd}} 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 {{rnd|56.44e33|-32}} → 5.64 × 1034.

TemplateData[править]

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

Документация подстраниц

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.

Параметры шаблона:

Параметр Описание Тип Статус
number 1

The number to be rounded

По умолчанию
пусто
Пример
пусто
Авто-значение
пусто
Число обязательный
decimal places 2

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

По умолчанию
пусто
Пример
пусто
Авто-значение
пусто
Число обязательный


See also[править]