Examples
Examples
Try the starting example
- Sail panel vertices JSON [[x m,y m],...]
- [[0,0],[4,0],[1,8]]
- Identical panels
- 1
- Single polygon panel area (m²)
- 16
- Total sail area (m²)
- 16
Try another scenario
- Sail panel vertices JSON [[x m,y m],...]
- [[1,0],[4,0],[1,8]]
- Identical panels
- 1
- Single polygon panel area (m²)
- 12
- Total sail area (m²)
- 12
Calculation method
Calculation method
Single polygon panel area (m²)
Shoelace polygon area, simple non-self-intersecting ordered vertices required.
Total sail area (m²)
Shoelace polygon area, simple non-self-intersecting ordered vertices required.
Symbols and units
- a
- Sail panel vertices JSON [[x m,y m],...]
- b
- Identical panels
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
- Planar measured simple polygon only; no aerodynamic shape, seam or stretch allowance. Supported limits: All required fields must be finite values of the exact declared type and within displayed bounds. Lists contain1–1000 finite numbers. JSON tables are numeric rectangular rows, at most100 rows and30 columns; individual tools have stricter shape/domain constraints. Planar measured simple polygon only; no aerodynamic shape, seam or stretch allowance.
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.