  
  [1X27 [33X[0;0YKnots and Links[133X[101X
  
      │ [10XPureCubicalKnot(L)[110X [10XPureCubicalKnot(n,i)[110X                                          │ 
      │ [10XViewPureCubicalKnot(L)[110X                                                           │ 
      │ [10XKnotSum(K,L)[110X                                                                     │ 
      │ [10XKnotGroup(K)[110X                                                                     │ 
      │ [10XAlexanderMatrix(G)[110X                                                               │ 
      │ [10XAlexanderPolynomial(K)[110X [10XAlexanderPolynomial(G)[110X                                    │ 
      │ [10XProjectionOfPureCubicalComplex(K)[110X                                                │ 
      │ [10XReadPDBfileAsPureCubicalComplex(file)[110X [10XReadPDBfileAsPureCubicalComplex(file,m ,c)[110X │ 
  
