C 1 — Collation and continuity requirements

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This communication deals with an inherent difficulty related to continuity in C1 finite element collocation methods. It is shown that the C1 condition is too special. Consequently these methods, as usually developed, are too restrictive and not suited to general purpose finite element programs, even for two-point problems. In view of this elementary observation, it may be argued that this approach has received more attention than this form of the method really merits, and that other (weaker) collocation procedures are probably more worthy.