Propagational inadequacy DuFort-Frankel

Both the LR and RL variants, despite being explicit, are said to be stable for all A values, which is a great advantage. Also, the method does not share with DuFort-Frankel and hopscotch the propagational inadequacy problem [232] mentioned above because both variants amount to a recursive algorithm, each newly calculated element carrying with it some component from all previously calculated elements. 

DuFort-Frankel Chap. 9, Sect. 9.2.3. Stable and explicit but inconsistent and shares the propagational inadequacy problem. 

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