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Bản_mẫu:Giá_trị Sự giới thiệuVal stands for the number value that is its first parameter. Val specializes in scientific notations and uncertainty notations, and in a measurement value with physical units. It formats the number (with possible unit) according to the Manual of Style and keeps the expression from wrapping across lines.
Express a numeral:
{{val|123456.78901}}
→ value, formated with gaps: 12345678901, or with |fmt=commas
→ 12345678901.{{val|number|number}}
→ value ± uncertainty, like 123478±56{{val|number|(number)}}
→ value(uncertainty), like 12345(56).{{val|number|number|number}}
→value +uncertaintyExpress a measurement value with a unit, for example {{val|4|ul=m/s2}}
→ 4 m/s2. The keyboard characters m/s2 are a "unit code" that |u=m/s2
marks up, or that |ul=m/s2
additionally links to its articulation.
Because the unit spacing and markup is a style issue, Val provides these for you. There are a large number of unit codes that Val understands and keeps "up to code". A unit code is usually composed of one or more abbreviated unit names and the usual math symbols on the typical keyboard. See {{Val/units}}.
Some unit-code flexibility is provided by having four parameters to work the unit-code system: whether to link one or not, (see Overlinking) , and whether to form a ratio or not with a unit code.
{{val|number|u=unit code}}
→ number markup , such as 98 m/s2{{val|number|ul=unit code}}
→ number [[Article|markup]], such as 98 m/s2{{val|number|u=unit code|upl=unit code}}
→ number markup/[[Article|markup]], such as 98 m/s2{{val|number|ul=unit code|up=unit code}}
→ [[Article|markup]]/markup, such as 98 m/s2To bypass the unit code system, if |u=
does not recognize your unit code, it will accept any wikitext and render it as usual.
{{val|5.4|u=[[kg]]⋅[[meter|m]]/s<sup>2</sup>}}
→ 54 kg⋅m/s2{{val|7.6|u=[[metre per second squared|m/s<sup>2</sup>]]}}
→ 76 m/s2See below for § How to add units to the unit code system.
Sometimes a number and unit code is not enough. A prefix or suffix are also available, |p=
and |s=
.
{{val|7600|u=C⋅Ga|p=>|s=<}}
→ >7600 C⋅Ga<{{val|7600|u=C|p=<span style="color:green"><sup>|s=</span></sup>}}
→ 7600 CSee {{val/testcases}} to learn the val parameters by a example. It's comprehensive, and there's over 100 examples.
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