and we only need to drop the treatment of Dirichlet boundary nodes. The use of
higher order mappings is also rather trivial and will be explained at the
various places where we use it; in almost all conceivable cases, you will only
-consider the objects describing mappings as a black box which you need to
+consider the objects describing mappings as a black box which you need not
worry about, because their only uses seem to be to be passed to places deep
inside the library where functions know how to handle them (i.e. in the
<TT>FEValues</TT> classes and their descendents).
and we only need to drop the treatment of Dirichlet boundary nodes. The use of
higher order mappings is also rather trivial and will be explained at the
various places where we use it; in almost all conceivable cases, you will only
-consider the objects describing mappings as a black box which you need to
+consider the objects describing mappings as a black box which you need not
worry about, because their only uses seem to be to be passed to places deep
inside the library where functions know how to handle them (i.e. in the
\texttt{FEValues} classes and their descendents).
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