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For a properly formatted radical such as √9 or √(x + 1), use Google Docs’ equation editor. On a computer, choose Insert → Symbols → Equation, then type sqrt and press Space, or select the radical from the equation toolbar’s Math operators menu. The command works inside an equation, not in ordinary paragraph text.
Insert a square root with the equation editor
- Open the document in Google Docs on a computer and place the cursor where the expression belongs.
- Select Insert → Symbols → Equation. Google documents this path in its equation help.
- In the equation toolbar, open Math operators and choose the square-root (radical) symbol.
- Type the radicand—the number, variable, or expression under the bar—for example
9orx.
To show or hide the equation controls later, use View → Show equation toolbar.
Use the faster sqrt shortcut
With the cursor inside an active equation, type sqrt, press Space, and then enter the radicand:
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sqrt → Space → 9The result is a structured square root with an overbar. Google’s current help explains the general backslash-plus-name convention, while Google’s first-party announcement specifically documents sqrt followed by Space (or a parenthesis): equation help and Google’s announcement.
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If you type the same characters in normal document text, Docs may leave them as literal text. Enter equation mode first.
Put numbers, variables, and expressions under the radical
After inserting the radical, enter the intended radicand. Typical results include:
√9√x√(x + 1)√(a² + b²)
For more than one character, group the expression with parentheses when needed so it is clear that the entire expression belongs under the bar. Use the equation editor for fractions rather than placing a pasted √ next to manually formatted text.
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Exponents and subscripts
Google’s equation editor supports superscripts and subscripts. In an equation, the documented shortcuts include ^ for a superscript and _ for a subscript; you can also use the equation toolbar. For example, build a radicand such as x² inside the radical.
Cube roots and indexed roots
Use the toolbar’s radical or root options if your current Docs interface provides an index control. Google’s current help does not document every indexed-root variant or a guaranteed LaTeX-style command such as sqrt[3]{x}, so do not assume that syntax will work exactly as it does in LaTeX.
Need only the √ character?
For a heading, label, or short sentence, copy and paste this standalone character:
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√
It is ordinary Unicode text. It will not automatically extend a bar over following characters, so it is not a substitute for an equation when you need a formal expression such as √(x + 1). The pasted character may also look different from an equation-editor radical because of font and rendering differences.
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Keyboard access to the equation command
Google’s current shortcut list does not establish a universal one-key shortcut that directly opens the equation editor. Its documented alternative is the Tool finder:
- Windows or ChromeOS:
Alt + / - Mac:
Option + /
Open the Tool finder and search for “equation,” or use the Insert menu. Google notes that shortcuts can vary with language and keyboard layout; the backslash key may be in a different location on some keyboards. Source: Google Docs keyboard shortcuts.
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Continue editing, exit, or remove the equation
Click elsewhere in the document to resume ordinary typing. To edit the radical, click the equation and place the cursor in the number, variable, or symbol that needs changing.
To remove a complete equation, select the equation object (or place the cursor at it) and press Delete or Backspace. If you need to preserve the radicand while removing only the radical, edit the equation and select the radical structure; selection behavior can differ between structured equation elements and ordinary text.
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- Confirm that the cursor is inside an equation box created with Insert → Symbols → Equation.
- Use a backslash (
), not a forward slash (/). - Type lowercase
sqrtand press Space. - Check that the document is open in the desktop web version and that you have editing access rather than viewing or comment-only access.
- Delete the literal command and choose the radical from Math operators instead.
- Try a new blank document to determine whether the issue is specific to the current file.
Google Docs on Android, iPhone, and iPad
Google’s documented equation workflow is presented for computers. Its accessibility documentation says equations cannot be edited on mobile devices, although they can still be read with a screen reader. If the equation controls are missing in the mobile app, open the document in a desktop browser or create the equation on a computer. See Google’s accessibility guidance.
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- 【Heat Dissipation】 ：The top of the laptop stand is designed with multiple ventilation holes. The open design offers greater ventilation and more airflow to cool your laptop during operation other than it just lays flat on the table.
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Formatting in Docs versus calculating in Sheets
| Goal | Use | Result |
|---|---|---|
| Display √9, √x, or √(x + 1) | Google Docs equation editor | A formatted radical with an extending overbar |
| Show only the symbol | Paste √ |
A standalone character with no structured overbar |
| Calculate a value | Google Sheets SQRT(value) |
The positive square root of a positive input |
SQRT() is a Google Sheets function, not a Google Docs paragraph command. Google states that a negative Sheets input returns #NUM!. Source: Google Sheets SQRT documentation.
Accessibility considerations
For instructional or public documents, use an editable equation rather than a screenshot. Google exposes equation content separately to assistive technology and documents equation and function boundaries, including screen-reader and braille behavior, in its accessibility guidance. Test the finished document with the screen reader your audience uses, especially when the expression contains nested fractions, exponents, or indexed roots.
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