Examples
Examples
Try the starting example
- Intervals [length m,grade percent,density weight]
- [[1,2,1],[2,3,1],[1,1,1]]
- Length-density weighted grade (%)
- 2.25
- Total intercept length (m)
- 4
Try another scenario
- Intervals [length m,grade percent,density weight]
- [[1,3,1],[2,4,1],[1,2,1]]
- Length-density weighted grade (%)
- 3.25
- Total intercept length (m)
- 4
Calculation method
Calculation method
Length-density weighted grade (%)
sum(length×density×grade)/sum(length×density).
Total intercept length (m)
Sum interval lengths.
Symbols and units
- a
- Intervals [length m,grade percent,density weight]
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
- Interval lengths, grades, density weights optional. Returns Weighted composite grade. 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.
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.