# Root symbol

#### Chikis

If I want to show root symbol other than square root symbol, how do I do it? For example, if I want to show third root, fourth root, fifth root symbol, etc, how do I do it?

#### greg1313

Forum Staff
\sqrt[n]{...}, where n is the nth root. For example, \sqrt[3]{81} gives $$\displaystyle \sqrt[3]{81}$$.

#### Relentless

For square root and cube root, you can write: sqrt(x) and cbrt(x)

Otherwise I suppose you'll have to use exponents. Square root is x^(1/2), cube root is x^(1/3), 4th is x^(1/4) ... nth is x^(1/n)

Edit: Oh, you mean LaTex. Don't ask me, I get by without it (X

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Thank you.