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Code formatted for LaTeX documents ($ equations $).Quick Facts
- Symbol:√
- Name:Root
- Unicode:
U+221A - HTML Entity:
√ , √ - LaTeX:
\sqrt
The Square Root Symbol (√) in Mathematics
The Square Root symbol (√), also known as the radical symbol or radical sign, represents the mathematical operation of finding the square root of a number.
If $y^2 = x$, then $y = \sqrt{x}$. The number inside the radical is called the radicand. The radical symbol can also be extended to represent cube roots ($\sqrt[3]{x}$) or higher-degree roots by adding an index.
How to Use and Copy the Square Root Sign Online
Copying the square root character is easy. Click the Copy button on the display card at the top. You can also type sqrt or use our draw canvas to sketch the radical shape and find it among the candidate results.
Properties of the Square Root
Some key properties and formulas involving square roots include:
- Product Property: $\sqrt{ab} = \sqrt{a} \cdot \sqrt{b}$ (for $a, b \ge 0$).
- Quotient Property: $\sqrt{\frac{a}{b}} = \frac{\sqrt{a}}{\sqrt{b}}$ (for $a \ge 0, b > 0$).
- Exponent Form: $\sqrt{x} = x^{1/2}$.
Explore Other Keyboard Tools
To type more mathematical symbols, constants, and operators, check out our collections: Math symbol keyboard, Physics constants keyboard, Chemistry formulas keyboard, Greek letters keyboard, Spanish accents keyboard, German QWERTZ keyboard, and French accents keyboard.
Frequently Asked Questions (FAQ)
What is the meaning of the Square Root symbol (√)?
The square root symbol (√), or radical, represents the principal square root of a number, which when multiplied by itself gives the original number.
How do I type the Square Root symbol on a computer?
Use Alt + 251 on a Windows numeric keypad, or type "\sqrt" in Word or LaTeX. On our tool, you can copy it or draw it.
What is the LaTeX code for Square Root?
The LaTeX command for square root is "\sqrt{x}".
What is the Unicode and HTML entity for Square Root?
The Unicode is U+221A, and the HTML entity is √ or √.