Complement (∁)
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Codes for the "Complement" Symbol
Click on a green box to copy its contents.Formal Name:
Complement
The symbol:
∁
The Alt Code:
Alt 8705
The HTML Code:
∁
HTML Entity:
∁
CSS Code:
\2201
Hex Code:
∁
Unicode:
U+2201

Test Your Knowledge of the Mathematics Symbols
Here is a quick quiz to test your knowledge of the symbols used in Mathematics.View the Symbol in Different Sizes and Fonts
ABC ∁ 123
ABC ∁ 123
Attribute | Setting | Change |
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Font Size | ||
Font Family | Arial |
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Color/Colour |
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Video Explaining How to Insert Special Symbols
This video explains 7 ways to insert a special symbol into an MS Office application (e.g., Word) or a website using HTML, CSS, or JavaScript:How To Insert the ∁ Symbol
(Method 1) Copy and paste the symbol.
Click on the ∁ symbol from the table above. Press the "Copy" button, and then paste the symbol into your document.(Method 2) Use the "Alt Code."
The Alt Code for ∁ is Alt 8705. If you have a keyboard with a numeric pad, you can use this method. Simply hold down the Alt Key and type 8705. When you lift the Alt Key, ∁ appears. ("Num Lock" must be on.)(Method 3) Use the HTML Decimal Code (for webpages).
HTML Text | Output |
---|---|
∁ | ∁ |
(Method 4) Use the HTML Entity Code (for webpages).
HTML Text | Output |
---|---|
∁ | ∁ |
(Method 5) Use the CSS Code (for webpages).
CSS and HTML Text | Output |
---|---|
<style> span:after { content: "\2201";} </style> <span>Symbol:</span> | Symbol: ∁ |
(Method 6) Use the HTML Hex Code (for webpages and HTML canvas).
HTML Text | Output |
---|---|
∁ | ∁ |
JavaScript Text |
---|
const x = "0x"+"2201" ctx.fillText(String.fromCodePoint(x), 5, 5); |
Output |
∁ |
(Method 7) Use the Unicode (for various, e.g. Microsoft Office, JavaScript, Perl).
The Unicode for ∁ is U+2201. The important part is the hexadecimal number after the U+, which is used in various formats. For example, in Microsoft Office applications (e.g. Word, PowerPoint), do the following:Type | Output |
---|---|
2201 [Hold down Alt] [Press x] | ∁ (Note that you can omit any leading zeros.) |
JavaScript Text | Output |
---|---|
let str = "\u2201" document.write("My symbol: " + str) | My symbol: ∁ |
(Method 8) Use an Image (for various).
HTML Text | Output |
---|---|
<img src = "myImg.png"/> | ∁ |
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