\pard\tx960\tx1920\tx2880\tx3840\tx4800\tx5760\tx6720\tx7680\tx8640\tx9600\f0\b0\i0\ul0\fs24 alt-[ in Symbol font is an overbar that appears over next letter typed
\pard\tx960\tx1920\tx2880\tx3840\tx4800\tx5760\tx6720\tx7680\tx8640\tx9600\f1\b0\i0\ul0\qc\fs32 p
[255c]{\rtf0\ansi{\fonttbl\f0\fswiss Helvetica;}
\margl40
\margr40
\pard\tx960\tx1920\tx2880\tx3840\tx4800\tx5760\tx6720\tx7680\tx8640\tx9600\f0\b0\i0\ul0\fs24 Use symbol font for Greek and other characters - look at keyboard panel in Preferences application