LaTeX Square Root (√) - 完全ガイド

The square root symbol (√) represents the square root function in mathematics.

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√

Square Root

LaTeX Code

Method 1: Using \sqrt{x}

No package required

Recommended

\sqrt{x}

Square root of x

Method 2: Using \sqrt[n]{x}

No package required

\sqrt[n]{x}

nth root of x

LaTeX Square Rootとは？

The square root symbol (√) is used to denote the principal square root. The \sqrt command in LaTeX can also be used for nth roots using the optional parameter.

LaTeXでのSquare Rootの使い方

方法 1: \sqrt{x}を使用

✅パッケージ不要

Square root of x

\sqrt{x}の使用例

latex

\documentclass{article}

\begin{document}

% Using the Square Root
Text with \sqrt{x}

\end{document}

方法 2: \sqrt[n]{x}を使用

✅パッケージ不要

nth root of x

\sqrt[n]{x}の使用例

latex

\documentclass{article}

\begin{document}

% Using the Square Root
Text with \sqrt[n]{x}

\end{document}

一般的なユースケース

Square Root記号は、主に以下の文脈で使用されます:

Square Root

Basic square root.

Code

$\sqrt{9} = 3$

Output

√9 = 3

Nth Root

Root of any degree.

Code

$\sqrt[3]{8} = 2$

Output

∛8 = 2

完全な例

Quadratic Formula with Roots

Square root in formulas

latex

\documentclass{article}
\begin{document}

The solutions are:
$$x = \frac{-b \pm \sqrt{b^2 - 4ac}}{2a}$$

The square root in the numerator:
$$\sqrt{b^2 - 4ac}$$

\end{document}