قالب:Rnd/شرح
< قالب:Rnd
 | هذه صفحة توثيق قالب:Rnd الفرعية، لشرح القالب وتصنيفه، وهي لا تدخل في استخدامه. |
الاستخدام
This template rounds {{{1}}} to {{{2}}} decimal places (goes the other way for negatives) and includes trailing zeros. Scientific notation is used for numbers greater than or equal to 1×109, or less than 1×10−4.
Compare:
- {{
rnd|2.0004|3}} gives 2٫000- whereas {{
#expr:2.0004 round 3}} gives 2
- whereas {{
- {{
rnd|0.000020004|7}} gives 2٫00×10−5 - {{
rnd|0|8}} gives 0٫00000000 - {{
rnd|154268|-3}} gives 154٬000 {{rnd|1200004|-1}}← 1٬200٬000- whereas
{{#expr:1200004round-1}}← 1200000, even though{{#expr:1300004round-1}}← 1300000 (see m:Help:Format produced by expr)
- whereas
{{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}}← 1٫542689271×109{{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}}← 123٬456٬789٫0123500000{{rnd|.0001234567890123456789|20}}← 0٫00012345678901235
Internal details
The template 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
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