Table 8-1. Class --Continued Method Justification Five consecutive parallel axes Four consecutive parallel axes Three consecutive parallel axes Three consecutive parallel axes Three consecutive parallel axes Two pairs of parallel axes Four consecutive parallel axes Three consecutive parallel axes Two pairs of parallel axes Three consecutive parallel axes Notation: D CF 1-D 2-D = Degenerate geometry = Closed-Form = One Dimensional iterative method = Two-Dimensional iterative method 10-000 10-001 10-010 10-011 10-100 10-101 10-110 10-111 11-000 11-001 11-010 11-011 11-100 11-101 11-110 11-111 D D CF CF CF 1-D 2-D 2 -D D CF 1-D 2-D CF 2-D 2-D 2-D ..