Дидани манбаъи Шаблон:Round/doc

{{Documentation subpage}}
This templates rounds parameter 1 to the number of digits after the point optionally given as parameter 2. If parameter 2 is negative, rounding is to a multiple of 10. If parameter 2 is undefined, numbers with 4 digits before the point are rounded to integers, numbers with 3 digits before the point are rounded to 1 digit after the point, numbers with 2 digits before the point are rounded to 2 digits after the point, and numbers with 1 digit before the point or none are rounded to 3 digits after the point. 

In other words, if parameter 2 is undefined, rounding is to 4 [[significant digits]], except that it is not cruder than rounding to an integer and not finer than rounding to three digits after the decimal point.

Examples:
*{{xpdop3p3c|round|123.456|||4}}
*{{xpdop3p3c|round|123.456|||3}}
*{{xpdop3p3c|round|123.456|||2}}
*{{xpdop3p3c|round|123.456|||1}}
*{{xpdop3p3c|round|123.456|||0}}
*{{xpdop3p3c|round|123.456|||-1}}
*{{xpdop3p3c|round|123.456|||-2}}
*{{xpdop3p3c|round|123.456|||-3}}

*{{xpdop3c|round|123456.789}}
*{{xpdop3c|round|12345.6789}}
*{{xpdop3c|round|1234.56789}}
*{{xpdop3c|round|123.456789}}
*{{xpdop3c|round|12.3456789}}
*{{xpdop3c|round|1.23456789}}
*{{xpdop3c|round|.123456789}}
*{{xpdop3c|round|.0123456789}}
*{{xpdop3c|round|.00123456789}}

Note that trailing zeros are not shown, so rounding can seem cruder than has actually been applied:
*{{xpdop3c|round|123.04}}
*{{xpdop3c|round|12.304}}
*{{xpdop3c|round|1.2304}}

While this is a limitation of the template (normally there would be trailing zeros to show the [[precision]]), there is also the general problem that if a number is an integer with trailing zeros, then the precision is not clear: 
*{{xpdop3c|round|1230.4}}

== See also ==
* {{tl|roundup}}
* {{tl|rounddown}}
* {{tl|decimals}} – acts like rounding but displays trailing zeros after the decimal point

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[[Category:Mathematical function templates|Round]]
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