使用說明:特殊字元

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特殊字元

頁面顯示 輸入符號

∫ ∑ ∏ √ − ±
∞ ≈ ∝ ≡ ≠
≤ ≥ → × ·
÷ ∂ ′ ″ ∇
‰ ° ∴ ℵ ø
∈ ∉ ∩ ∪ ⊂
⊃ ⊆ ⊇ ¬ ∧
∨ ∃ ∀ ⇒ ⇔
→ ↔

&int; &sum; &prod; &radic; &minus; &plusmn; 
&infin; &asymp; &prop; &equiv; &ne;
&le; &ge; &rarr; &times; &middot;
&divide; &part; &prime; &Prime; &nabla; 
&permil; &deg; &there4; &alefsym; &oslash;
&isin; &notin; &cap; &cup; &sub;
&sup; &sube; &supe; &not; &and;
&or; &exist; &forall; &rArr; &hArr;
&rarr; &harr;