[Nek5000-users] Derivatives problem

[nek5000-users at lists.mcs.anl.gov]

Dear All,

Has anyone ever encountered this problem (or has any idea what might be
causing this) when using derivatives: (see link to picture)

http://s30.postimg.org/vacfvzzv5/problem2.png

Something seems to go wrong at the element borders..

Regards,
JP
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