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Math & AlgebraGenerated accuracy model review: 2026-05-06
Big Number 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
- This tool uses the `BigInt` primitive in modern JavaScript engines, which can represent integers larger than 2^53 - 1. It performs integer arithmetic, meaning division results are truncated (no decimals).
Test cases
Default input regression check
Generated from the checked-in default inputs and calculate function.
Inputs
- Operation: Add (+)
- Number A: 12345678901234567890
- Number B: 98765432109876543210
Expected outputs
- Exact Integer Result: 111111111011111111100
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
- This calculator only accepts integers, with optional commas or spaces removed before evaluation.
- Division is integer division, so any fractional remainder is discarded.
- Division or modulo by zero returns an invalid result instead of a fake numeric answer.
Unit handling
- Operation accepts one of the configured options.
- Number A accepts text values.
- Number B accepts text 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 big-number-calculator calculator definition.
Change log
2026-05-06
Published default regression test documentation and metadata fallbacks for Big Number Calculator.
Calculator transparency
Accuracy pages are generated from checked-in calculator definitions and can be upgraded with curated review metadata over time.