Examples
Examples
Try the starting example
- Reference concentrations
- 0,1,2,4
- Reference conductivities (same temperature)
- 0,2,4,8
- Sample conductivity readings
- 1,3,6
- Piecewise-linear interpolated concentrations
- [0.5,1.5,3]
- Linear calibration residuals
- [0,0,0,0]
Try another scenario
- Reference concentrations
- [0, 1, 2, 4]
- Reference conductivities (same temperature)
- [0, 2, 4, 8]
- Sample conductivity readings
- [2, 4, 7]
- Piecewise-linear interpolated concentrations
- [1,2,3.5]
- Linear calibration residuals
- [0,0,0,0]
Calculation method
Calculation method
Piecewise-linear interpolated concentrations
Invert strictly increasing reference conductivity table; no extrapolation.
Linear calibration residuals
Observed reference conductivity minus global OLS conductivity prediction; assess model departure.
Symbols and units
- a
- Reference concentrations
- b
- Reference conductivities (same temperature)
- c
- Sample conductivity readings
Use the units shown. A list keeps the order in which you enter its values. The symbol ^ means “raised to the power of”.
Assumptions & limits
Assumptions & limits
- Reference concentrations-conductivities, sample readings. Returns Interpolated concentration and residuals. All coefficients and observations are user supplied; results describe only the stated mathematical model. Quantities are deterministic calculations from supplied observations and assumptions; no external data is fetched. Supported limits: Finite inputs only; numeric fields bounded as labelled. Lists and JSON records are limited to 256 entries unless a stricter tool bound is stated. No automatic design approval, legal conclusion, treatment recommendation or safety certification. Reference concentrations: minimum 0, maximum 1000000000000.0. Reference conductivities (same temperature): minimum 0, maximum 1000000000000.0. Sample conductivity readings: minimum 0, maximum 1000000000000.0.
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.