How to use it
Use the number wheel for seat numbers, turn order, samples, or small integer ranges with auditable exclusions.
- Enter integer minimum, maximum, and a positive step.
- Optionally list aligned exclusions and choose how many values to draw.
- Build and spin the wheel; repeat from the remaining pool or reset.
Worked example
- Input
Minimum −2 · maximum 8 · step 2 · exclude 0, 6
- Output
Pool: −2, 2, 4, 8 · draw: 4
An exclusion must be an actual member of the stepped range; it is never silently rounded.
Method and definitions
- The candidate list is generated exactly from minimum + n × step after validation.
- A partial Fisher–Yates shuffle uses rejection-sampled Web Crypto indexes to draw without replacement.
Limits and edge cases
- All values must be safe integers and the initial range may contain at most 1,000 candidates.
- The tool does not generate decimal, continuous, normally distributed, or cryptographic key values.
Privacy
Entries, dates, times, and results remain in this tab. Rigula does not upload them or add them to the URL.
Sources
