Calculator Methodology
The swervice methodology for browser-based calculators, formula transparency, examples, limitations, privacy, and correction handling.
Methodology principles
swervice calculators are designed for fast educational estimates. Calculator inputs are processed in the visitor's browser, and pages should explain what the result means, what assumptions are used, and when professional verification is needed.
Formula handling
- Each calculator uses the JavaScript formula embedded on that page.
- Where a formula is simple and stable, the page should describe it in plain language.
- Where a formula depends on rules, standards, market data, or a professional context, the page should state the limitation and avoid overstating precision.
Worked examples
Worked examples use the default or visible page inputs so readers can reproduce the calculation. Examples are for learning and comparison, not guarantees of real-world outcomes.
Assumptions and limits
Financial, health, legal, tax, engineering, construction, and safety-related calculators can be affected by current rules, local conditions, personal circumstances, vendor specifications, and professional standards. swervice results should be treated as planning aids.
Privacy approach
Calculator values are intended to run locally in the browser. Visitors should avoid entering information that is not needed for a calculation.