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²³±
HTML Meaning
&#8730;
U+221A
Square Root Symbol
The Square Root Symbol, denoted as √, represents the square root of a given number.
&#8731;
U+221B
Cube Root Symbol
Represents the cube root of a given number.
&#8732;
U+221C
Fourth Root Symbol
Represents the fourth root of a given number.

### What is the Radical Symbol?

The Radical Symbol is used to indicate the square root or n-th root of a number. It comes in various forms like √ for square root, ∛ for cube root, and ∜ for fourth root. These symbols are fundamental concepts in algebra, calculus, and various other mathematical fields.

### Variants of the Radical Symbol

The Radical Symbol comes in various forms for different roots, such as square root (√), cube root (∛), and fourth root (∜). Note that the square root symbol (√) does not require a superscript 2, while other root symbols like ∛ and ∜ do require their respective superscripts (³, ⁴) for clarity.

### Applications of the Radical Symbol in Various Fields

The Radical Symbol has applications in multiple disciplines:

• Mathematics: Extensively used in algebra, calculus, and trigonometry.
• Computer Science: Used in algorithms for calculating distances and various optimization problems.
• Engineering: Employed in calculating various physical quantities like stress and strain.
• Physics: Used in equations involving energy, motion, and waves.

### How to Type the Radical Symbol Using Keyboard Shortcuts, Alt Codes, and LaTeX

• Windows: Hold down the Alt key and type 251 on the numeric keypad for √, then release the Alt key.
• Mac: Press Option + v for √.
• Linux: Press Ctrl + Shift + u, then type 221A and press Enter for √.
• HTML: Use the named entity &radic; or the numeric entity &#8730; for √.
• LaTeX: To type the square root in LaTeX, use the command \sqrt{} for square roots and \sqrt[n]{} for n-th roots.