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Math & AlgebraGenerated accuracy model review: 2026-05-06
Root Calculator accuracy and testing
This page documents how Calwarden builds trust for this calculator: source notes, regression-style default tests, limitations, assumptions, unit handling, rounding, and visible change history.
Formula source
- The Nth root of x is written as $\sqrt[n]{x}$ or $x^{1/n}$. For example, $\sqrt[3]{8} = 2$ because $2 \times 2 \times 2 = 8$.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Number: 27
- Root (n): 3
Expected outputs
- Root Value: 3
Known limitations
- This page documents the checked-in calculator logic and does not certify results for every real-world edge case.
- Use the result as a planning estimate unless the calculator page states a stricter purpose.
Assumptions
- The calculator returns the principal real root.
- Even roots of negative numbers are not handled in the real number system.
- The root value must be non-zero.
Unit handling
- Number accepts numeric values.
- Root (n) accepts numeric values.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current root-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Root Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.