编辑“︁Template:Overset/doc”︁

{{缺乏中文说明}}
This template is for oversetting symbols in HTML, compatible with {{tl|math}}, as an alternative to <code>\overset</code> in LaTeX.

==Syntax==

The syntax is:

:<code><nowiki>{{overset|a|b}}</nowiki></code>

where the first parameter <code>a</code> is overset centrally atop the second parameter <code>b</code>. <code>a</code> has a font size of 70% that of <code>b</code>. When combined with {{tl|underset}}, the symbols fall out of line - see {{tl|overunderset}} for one possible solution.

==Examples==

===No [[:template:Math]]===

A vector formula inline sits on the baseline, {{overset|→|''a''}} + {{overset|→|''b''}} = {{overset|→|''c''}}, and another equation with all sorts of twiddles is similar, {{overset|~|''a''}} + {{overset|&and;|''n''}} {{=}} {{overset|•|''c''}}.

;Random characters and diacritics

:{{overset|~|''a''}}, {{overset|↔|Ԁ}}, {{overset|→|''D''}}, {{overset|←|''q''}},'''''{{overset|··|z}}''''', '''{{overset|·|n}}''', {{overset|^|Ω}}, '''{{overset|^|ε}}''', {{overset|—|N}}, ''{{overset|&and;|H}}'', {{overset|︿|'''J'''}}, {{overset|﹇|''Φ''}}

;Overset letters:

:{{overset|''n'' + ''m''|''A''}} + {{overset|{{=}} {{sqrt|6}}|''B''}}

;[[Rotating reference frame]]

:{{sfrac|d{{overset|→|''A''&prime;}}|d''t''}} {{=}} {{sfrac|d{{overset|→|''A''}}|d''t''}} &minus; {{overset|→|''ω''}} × {{overset|→|''A''}}

;[[Vorticity]]

:{{overset|→|''ω''}} {{=}} {{overset|→|&nabla;}} × {{overset|→|''u''}}

;[[Acceleration]]

:'''{{overset|··|r}}''' {{=}} {{sfrac|d'''{{overset|·|r}}'''|d''t''}} {{=}} {{sfrac|d<sup>2</sup>'''r'''|d''t''<sup>2</sup>}}

===[[:template:Math]]===

A vector formula in line sits on the baseline, {{math|{{overset|→|''a''}} + {{overset|→|''b''}} {{=}} {{overset|→|''c''}}}}, and another equation with all sorts of twiddles is similar, {{math|{{overset|~|''a''}} + {{overset|&and;|''n''}} {{=}} {{overset|•|''c''}}}}.

;Random characters and diacritics

:{{math|{{overset|~|''a''}}, {{overset|↔|Ԁ}}, {{overset|→|''D''}}, {{overset|←|''q''}},'''''{{overset|··|z}}''''', '''{{overset|·|n}}''', {{overset|^|Ω}}, '''{{overset|^|ε}}''', {{overset|—|N}}, ''{{overset|&and;|H}}'', {{overset|︿|'''J'''}}, {{overset|﹇|''Φ''}}}}

;Overset letters

:{{math|{{overset|''n'' + ''m''|''A''}} + {{overset|{{=}} {{sqrt|6}}|''B''}}}}

;[[Rotating reference frame]]

:{{math|{{sfrac|d{{overset|→|''A''&prime;}}|d''t''}} {{=}} {{sfrac|d{{overset|→|''A''}}|d''t''}} &minus; {{overset|→|''ω''}} × {{overset|→|''A''}}}}

;[[Vorticity]]

:{{math|{{overset|→|''ω''}} {{=}} {{overset|→|&nabla;}} × {{overset|→|''u''}}}}

;[[Acceleration]]

:{{math|'''{{overset|··|r}}''' {{=}} {{sfrac|d'''{{overset|·|r}}'''|d''t''}} {{=}} {{sfrac|d<sup>2</sup>'''r'''|d''t''<sup>2</sup>}}}}

== 参见 ==

* 对于专门用于向量的模板，见{{tl|vec}}。
*[[:en:Wikipedia:Rendering math]]

{{math templates|notation}}

<includeonly>
[[Category:数学格式模板]]
</includeonly>