Irregular area and Simpson’s rule

What this note covers

1. Measure offsets across an irregular region
2. Estimate with trapezia
3. Apply Simpson’s rule correctly
4. Handle unsuitable sampling
5. Compare estimates and interpret accuracy
6. Write a reproducible Simpson solution
7. Worked wetland survey: seven offsets and Simpson weights
8. Worked resampling decision: unequal strips, then an eligible grid

8 sections · 10 key terms & formulas · 6 common mistakes