![[equation]](eqn-89.gif)
x dotdot
![[equation]](eqn-90.gif)
x hat
![[equation]](eqn-91.gif)
x tilde
![[equation]](eqn-92.gif)
x vec
![[equation]](eqn-93.gif)
x dyad
![[equation]](eqn-94.gif)
x bar
![[equation]](eqn-95.gif)
x under
![[equation]](eqn-96.gif)
The diacritical mark is placed at the right height. The bar and under are made the right length for the entire construct, as in
![[equation]](eqn-97.gif)
;
other marks are centered.
To get funny marks on top of letters,
there are several words:
x dot
x dotdot
x hat
x tilde
x vec
x dyad
x bar
x under
The diacritical mark is placed at the right height.
The
bar
and
under
are made the right length for the entire construct,
as in ;
other marks are centered.