# Template:Rnd

 The below content is licensed according to Creative Commons Attribution-ShareAlike License contrary to the public domain logo at the foot of the page. It originally appeared on http://en.wikipedia.org. The original article might still be accessible here. You may be able to find a list of the article's previous contributors on the talk page.
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 The below content is licensed according to Creative Commons Attribution-ShareAlike License contrary to the public domain logo at the foot of the page. It originally appeared on http://en.wikipedia.org. The original article might still be accessible here. You may be able to find a list of the article's previous contributors on the talk page.

## Usage

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 Template:Rnd/e+

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 1Template:E, or less than 1Template:E.

Examples:

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

## Internal details

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

This is the TemplateData documentation for this template used by VisualEditor and other tools.

See the monthly error report for this template.

TemplateData for Rnd

<templatedata>{ "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.", "params": {

``` "1": {
"label": "number",
"description": "The number to be rounded",
"type": "number",
"required": true
},
"2": {
"label": "decimal places",
"description": "The number of decimal places, if negative the number is rounded so the last (parameter 2) digits are zero",
"type": "number",
"required": true
}
```

}}</templatedata>