--- name: approximation-ratio-calculator description: Analyze and prove approximation ratios for optimization algorithms allowed-tools: - Bash - Read - Write - Edit - Glob - Grep metadata: specialization: computer-science domain: science category: complexity-theory phase: 6 --- # Approximation Ratio Calculator ## Purpose Provides expert guidance on analyzing approximation algorithms and proving approximation guarantees. ## Capabilities - LP relaxation analysis - Integrality gap computation - Randomized rounding analysis - Approximation factor derivation - PTAS/FPTAS feasibility assessment - Inapproximability results analysis ## Usage Guidelines 1. **Problem Setup**: Formalize the optimization problem 2. **LP Relaxation**: Construct and analyze LP relaxation 3. **Rounding Design**: Design rounding scheme 4. **Ratio Proof**: Prove approximation ratio 5. **Gap Analysis**: Analyze integrality gap ## Tools/Libraries - LP/ILP solvers - Symbolic computation - Proof assistants