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Math & AlgebraGenerated accuracy model review: 2026-05-06
Percent Error 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 formula for Percent Error is: $\text{Percent Error} = \left| \frac{\text{Experimental} - \text{Theoretical}}{\text{Theoretical}} \right| \times 100$ The absolute value bars mean the result is always positive.
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Theoretical Value: 100
- Experimental Value: 95
Expected outputs
- Percent Error: 5.00%
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 theoretical value is the accepted baseline for the calculation.
- The result reports error magnitude, so it is always positive.
- Both values should use the same unit before you compare them.
Unit handling
- Theoretical Value accepts numeric values.
- Experimental Value accepts numeric values.
- Percent Error is displayed as a percentage.
Rounding rules
- Number displays use up to 2 decimal places in the calculator UI.
- Percent outputs are displayed with two decimal places.
Version history
1.0.0 - 2026-05-06
Generated accuracy and testing page from the current percent-error-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Percent Error.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.