Calculate the real nth root of a number, including cube and fourth roots.
| n√x | – |
Use this calculator for ⁿ√x when n is not 2. Cube root is n = 3; fourth root is n = 4. The dedicated square-root page is the simpler case for n = 2 and x ≥ 0.
The calculation is: root = sign(x) × |x|^(1/n). The degree n cannot be 0. Even integer degrees of a negative x are refused (no complex branch). Odd degrees of a negative, such as ³√(−27) = −3, are allowed.
Value: The radicand x.
n: The degree of the root (3 for a cube root, 4 for a fourth root).
n√x: The real nth root.
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