loading tool…
The LaTeX command for sqrt (√) is \sqrt{x} — square root.
\sqrt{x}Write \sqrt{x} inside math mode — that is, between $…$ for inline math or in a \[ … \] / equation block for display math. It is part of core LaTeX math, so no extra package is required.
$\sqrt{x} f(x)$Prefer to see it live? Paste it into the LaTeX preview and it renders as you type — no compiler, no signup.
Search all 380+ LaTeX symbols →
Use \sqrt{x} in math mode — it needs no extra package. For example, $\sqrt{x} f(x)$.
None — \sqrt{x} is built into LaTeX's math mode, so no extra package is required.