emaxima question



Hi

I've started playing around with emaxima and was wondering how to do
the following:

1.  Things like psi will render as \psi and psi[0] as \psi_0, that's
    great, but how would I get something like \tilde \psi or \dot
    \psi?  Is the entire Greek alphabet implemented (both upper and
    lower case)?
    
2.  Can I suppress/hide the maxima code and/or raw tex of the maximaoutput?  

3.  Finally, once I have everything done, I need to save the
    output into a regular latex (actually revtex) document, and be
    able to send it somewhere that doesn't have maxima/emaxima installed
    (e.g., a journal).  Is there some simple command to strip out
    everything but the tex output?


David