Worked example

Operation: Root ᵇ√a
a: -27
b: 3

→ −3

Method and scope

Real numbers only. Odd positive integer roots of negative values are supported. Even roots of negatives, zero to a nonpositive power and fractional powers of negatives are rejected. Root degree: 1–10,000.

aᵇ; ⁿ√a

Precision and limits

≈ marks an approximation. Display rounding does not change the internal calculation.