1.1. xxx
Note:
Mention here also PROMINENTLY things like Libraries, Code Index,
Documentation.
It is especially important to point out how and where to find the
codes that are being mentioned in the volumes.
1.2. Test of TeX Math macros
Try 
first and then
and 
and also
<$$
a^2 = b^ + c^2
$$>
to see what happens.
Ah: the first two work, but the last one doesn't.