In the generated epub
file, the hat is invisible.
The MWE is:
\documentclass{amsbook}
\begin{document}
$\widehat{t_0}$
\end{document}
This compiles under plain LaTeX, without any problems, and shows a t0 with a hat on top, as expected.
When compiled using the command
tex4ebook -f epub3 test
there are no error messages, but the output is a t0 without a hat on top. When I look at the test.dvi
that was produced by this command, there is a t0 with the text en-USxx
, left-aligned on top of the t0.
I thought perhaps it might have to do with some character encoding magic, so I added the lines
\usepackage{babel}
\usepackage[T1]{fontenc}
\usepackage[utf8]{inputenc}
in the preamble. This changed the dvi output to simply xx
rather than en-USxx
on top of the t0.
PS: Other variations:
- I tried with a plain `$\widehat{y}$ with similar results.
- I tried a simple
\hat
with similar results.