[texworks] Help!

[Philip TAYLOR]

Dona Strauss wrote:
> Hi!
>     I'd be very grateful if you could help me with a problem. I'm typing a file in plaintex and I can't compile it because texworks states that there are errors when I am sure that there are none. For example, texworks
> does not accept $f_{-p}$ or $\langle x_{n_t}\rangle$. I have carefully examined these expressions, and tried retyping them. I do not understand how they can contain errors.
>  
/Ex nihilo/, they are fine; I imagine that it is in the context in
which they are being used.  Strip down your code to the shortest
complete TeX program that demonstrates the problem, then post
it here : someone will then be able to explain the source of the problem.

Philip Taylor