hical display or
individual ray data may be transferred to the macro accumulator
(x-register) for further manipulation. The following three commands
trace the axial, full marginal ray in the YZ-plane and then display
the X, Y and coordinates at each surface and also the ray slope
angles.</p>
	
<p><strong>
    FOB<br>
    RAY,1<br>
    PRXYZ ALL<br>
</strong><p>

<p>There are quite a few different ray data display commands described
in the reference manual. You should go look them up in the CMD section
and r