数学符号 π ∞ Σ 复制粘贴 | 264+

💡Pro Tips

• •Bookmark this page on your phone's home screen as a web app shortcut — it gives you one-tap access to copy any math symbol without searching again.
• •On Android with Gboard, long-press the = key to reveal ≠ ≈ ≡ as quick options, and long-press + to access ± without leaving your keyboard.
• •When writing academic papers in Google Docs, use the Docs built-in equation editor (Insert > Equation) for complex multi-line expressions, but paste simple inline symbols like ∞ π ≤ directly — it is cleaner and faster than the equation editor for single characters.
• •In Microsoft Word, after pasting a symbol once, press Alt+X immediately after it to toggle between the character and its Unicode code point — useful for verifying you have the right symbol.
• •For repetitive use in professional documents, set up autocorrect shortcuts: in Word or Google Docs, map '/inf' to ∞, '/pi' to π, '/sum' to ∑ so they expand automatically as you type.
• •When pasting math symbols into email subject lines, test rendering by sending a draft to yourself first — some corporate email servers use custom fonts that may substitute characters.
• •If you are coding and need the hex code for any symbol, select it in your browser's address bar, right-click, and search it — or paste it into a Unicode lookup tool to confirm the code point before hardcoding it.
• •For LaTeX users: copy-paste Unicode symbols work fine as display text in labels and captions, but inside math mode ($...$) always use LaTeX commands — \infty for ∞, \pi for π, \sum for ∑, \sqrt{} for √ — to ensure correct typesetting and PDF compatibility.