# Diffraction Analysis Coefficient Validation

> Sub-skill of diffraction-analysis: Coefficient Validation (+2).

- Skill: `vamseeachanta/diffraction-analysis-coefficient-validation` (Agent Skill)
- Install (CLI): `npx skillmds@latest add vamseeachanta/diffraction-analysis-coefficient-validation`
- Raw SKILL.md: https://api.skillmd.com/api/skills/vamseeachanta/diffraction-analysis-coefficient-validation/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: vamseeachanta (https://skillmd.com/u/vamseeachanta)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/vamseeachanta/diffraction-analysis-coefficient-validation

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# 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)