Template:Rnd
Usage
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}} → 2.000
- whereas {{#expr:2.0004 round 3}} → 2
- {{rnd|0.000020004|7}} → 2.00×10−5
- {{rnd|0|8}} → 0.00000000
- {{rnd|154268|-3}} → 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)
- {{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: