Many Western languages use symbols and accents that do not appear in
normal English. LaTeX provides a convenient method of generating
accents and other symbols. Figure 
shows accents
that can be placed on any existing character--simply replace the
o in the curly braces with the letter you wish to accent.
Some other foreign characters are encoded directly, when they cannot
be built as combinations. Figure shows foreign-language
symbols which are available, and Figure shows some
special non-English symbols. Note that these characters cannot
immediately be followed by other characers, so you must follow them
with a space or with empty curly braces, as in:
ukasiewicz invented prefix (Polish) notation.
which is produced by
\L{}ukasiewicz invented prefix (Polish) notation.
Figure: Foreign language symbols
Figure: Special Language Symbols