Examples
Examples
Try the starting example
- Components JSON [sensitivity,standard deviation mm]
- [[1,0.2],[2,0.1]]
- User interval multiplier k (dimensionless)
- 3
- Combined standard deviation (mm)
- 0.282843
- Symmetric assumed interval half-width (mm)
- 0.848528
Try another scenario
- Components JSON [sensitivity,standard deviation mm]
- [[1,0.2],[2,0.1]]
- User interval multiplier k (dimensionless)
- 2
- Combined standard deviation (mm)
- 0.282843
- Symmetric assumed interval half-width (mm)
- 0.565685
Calculation method
Calculation method
Combined standard deviation (mm)
sqrt(sum((coefficient*sigma)^2)).
Symmetric assumed interval half-width (mm)
k*combinedSigma.
Symbols and units
- a
- Components JSON [sensitivity,standard deviation mm]
- b
- User interval multiplier k (dimensionless)
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Calculation steps and notation
sum(list) adds all entries in the list.
Assumptions & limits
Assumptions & limits
- Independent input deviations and linear sensitivities. k does not by itself establish a coverage probability; correlation and worst-case bounds excluded. Supported limits: 1..100 rows; sigma>=0; k>=0.
Are these inputs private?
These calculations run in your browser. A shared link contains the values you choose to share. Only questions submitted to the separate AI finder are sent to OpenAI.
Further reading
Background reading; this does not imply endorsement or independent review of SumFizz.