Sub-skill of diffraction-analysis: Coefficient Validation (+2).
Scanned 9/9/2026
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---
name: diffraction-analysis-coefficient-validation
description: 'Sub-skill of diffraction-analysis: Coefficient Validation (+2).'
version: 1.0.0
category: engineering
type: reference
scripts_exempt: true
---
# Coefficient Validation (+2)
## Coefficient Validation
- **Symmetry**: Added mass and damping matrices should be symmetric
- **Positive definiteness**: Diagonal elements non-negative
- **Physical limits**: No NaN/Inf values, reasonable magnitudes
## Kramers-Kronig Causality
- Added mass A(ω) and damping B(ω) must satisfy K-K relations
- Tolerance: typically 10% relative error acceptable
## RAO Validation
- Magnitude non-negative
- Phase in reasonable range (-360° to 360°)
- Physical trends (heave RAO → 1.0 at low frequency)
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