檢視討論:進階數學及科學/三角形的原始碼

此頁列出應用在HTML上、大多數瀏覽器應可支援顯示的「標準」數學符號，主要供撰寫[[數學]]條目的維基人參考使用。

*'''數字:''' &frac14; &frac12; &frac34; &amp;frac14; &amp;frac12; &amp;frac34;
*'''分數:'''½ ⅓ 7/9<nowiki>{{Fraction|1|2 {{Fraction|1|3 {{Fraction|7|9</nowiki> 
*'''字形大小''': <big>x</big> <small>x</small> &emsp; <nowiki><big>x</big> <small>x</small> </nowiki>
*'''底線文字''' &emsp; <u>underline</u> {{overline|overline&emsp; <nowiki><u> underline </u> {{overline|overline</nowiki>
*'''刪除線文字''' &emsp; <s>strikeout</s> &emsp; <nowiki><s> strikeout </s></nowiki>
*'''字形:'''&ensp;''italics''&ensp; '''bold''' &ensp;—&ensp;<big><nowiki>''</nowiki></big>italics<big><nowiki>''</nowiki></big> &ensp; <big><nowiki>'''</nowiki></big>bold<big><nowiki>'''</nowiki></big>
*'''通用字形規範:''' <span style="font-family: Times New Roman; font-size:100%; font-style:italic; font-weight:bold;"> Φ (A) </span> &emsp; <<nowiki>span style="font-family: Times New Roman; font-size:100%; font-style:italic; font-weight:bold;"> Φ (A) <</nowiki>/span>;
*'''上標/下標符號:''' x<sup>2</sup> x<sub>3</sub> x{{su|p=2|b=1&emsp; <nowiki>x<sup>2</sup> x<sub>3</sub> x{{su|p=2|b=1</nowiki>;
*'''分析符號:''' &fnof; &part; &int; &sum; &prod; &radic; &infin; &nabla; &weierp; &image; &real; &amp;fnof; &amp;part; &amp;int; &amp;sum; &amp;prod; &amp;radic; &amp;infin; &amp;nabla; &amp;weierp; &amp;image; &amp;real;
*'''箭頭符號:''' &larr; &darr; &rarr; &uarr; &harr; &crarr; &lArr; &dArr; &rArr; &uArr; &hArr; &amp;larr; &amp;darr; &amp;rarr; &amp;uarr; &amp;harr; &amp;crarr; &amp;lArr; &amp;dArr; &amp;rArr; &amp;uArr; &amp;hArr; 
*'''邏輯符號:''' &not; &and; &or; &exist; &forall; &amp;not; &amp;and; &amp;or; &amp;exist; &amp;forall; 
*'''集合符號:''' &isin; &notin; &ni; &empty; &sube; &supe; &sup; &sub; &nsub; &cup; &cap; &alefsym; &amp;isin; &amp;notin; &amp;ni; &amp;empty; &amp;sube; &amp;supe; &amp;sup; &amp;sub; &amp;nsub; &amp;cup; &amp;cap; &amp;alefsym; 
*'''關聯符號:''' &ne; &le; &ge; &lt; &gt; &equiv; ≢ &sim; &cong; &asymp; &prop; &amp;ne; &amp;le; &amp;ge; &amp;lt; &amp;gt; &amp;equiv; &amp;nequiv; &amp;sim; &amp;cong; &amp;asymp; &amp;prop; 
*'''二進制運算元:''' &plusmn; &minus; &times; &divide; &frasl; &perp; &oplus; &otimes; &lowast; &amp;plusmn; &amp;minus; &amp;times; &amp;divide; &amp;frasl; &amp;perp; &amp;oplus; &amp;otimes; &amp;lowast; 
*'''分隔符號:''' &lceil; &rceil; &lfloor; &rfloor; &lang; &rang; &laquo; &raquo; &amp;lceil; &amp;rceil; &amp;lfloor;&amp;rfloor; &amp;lang; &amp;rang; &amp;laquo; &amp;raquo;
*'''各式符號:''' &dagger; &Dagger; &brvbar; &ang; &there4; &loz; &bull; &spades; &clubs; &hearts; &diams;  &amp;dagger; &amp;Dagger; &amp;brvbar; &amp;ang; &amp;there4; &amp;loz; &amp;bull; &amp;spades; &amp;clubs; &amp;hearts; &amp;diams; 
*'''標點符號:''' &prime; &Prime; &oline; &deg; &sdot; &middot; &hellip; &ndash; &mdash; &circ; &amp;prime; &amp;Prime; &amp;oline; &amp;deg; &amp;sdot; &amp;middot; &amp;hellip; &amp;ndash; &amp;mdash; &amp;circ; 
*'''空格表示符號:''' 窄空格 (&thinsp;), n-寬度空格 (&ensp;), m-寬度空格 (&emsp;), and [[不换行空格]] (&nbsp;). &amp;thinsp; &amp;ensp; &amp;emsp; &amp;nbsp; 
*'''希臘符號:''' &alpha; &beta; &gamma; &Alpha; &Beta; &Gamma; etc. &amp;alpha; &amp;beta; &amp;gamma; &amp;Alpha; &amp;Beta; &amp;Gamma; etc.
*'''萬國碼:''' 例如輸入 &amp;#x22A2; 即可顯示[[萬國碼]]x22A2的 &#x22A2;。提醒：有許多[[萬國碼]]字元可能無法在所有的[[網頁瀏覽器]]上正確顯示，這亦使頁面源代碼難以閱讀。

有時候直接複製符號可能比加入上述代碼簡單，例如[[萬國碼]]中的[[字母式符号]]就可以直接複製並加入頁面，像利用 ℝ 代替 &amp;#8477;。點選編輯頁下方列出的符號亦可將符號直接加入頁面。