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 2 shows foreign-language symbols which are available, and Figure 3 shows some special non-English symbols. Note that these characters cannot immediately be followed by other characters, 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.