How is the nth root calculated?

ⁿ√x = x^(1/n). For example, the cube root of 27 is 27^(1/3) = 3.

Yes. x^(1/(-n)) = 1/(ⁿ√x) for positive x.

What about even roots of negative numbers?

For real numbers, even roots of negative x are not defined; the tool may return NaN for such cases.

Calculate the nth root of x: ⁿ√x = x^(1/n). Enter n and x to get the result.

n (root index)

How is the nth root calculated?: ⁿ√x = x^(1/n). For example, the cube root of 27 is 27^(1/3) = 3.
Can n be negative?: Yes. x^(1/(-n)) = 1/(ⁿ√x) for positive x.
What about even roots of negative numbers?: For real numbers, even roots of negative x are not defined; the tool may return NaN for such cases.

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