Lyx underbrace is broken

Question

While using underbrace in Lyx, the result looks really bad. enter image description here

The left to are done with Ctrl+L option, with \underbrace{Earth}_{E} (or similar), and the right three are \overset{\underbrace{Comparison\, to}}{I} or similar.

As you can see, the brace is broken. How can I fix this?

This is a rendering issue with the viewer. You will see that this disappears when you zoom in/out. That is, at specific zoom levels it appears "broken", while at others it seems fine. — Werner, Jul 24 '13 at 16:03
Also, you should include amsmath in your document preamble (Document > Settings... > LaTeX Preamble, add \usepackage{amsmath}) and use \underbrace{\text{Earth}}_{S} instead. — Werner, Jul 24 '13 at 16:04
amsmath is there, and this remains in ALL zoom levels, in both evince, and okular — Sean, Jul 24 '13 at 16:05
I'm sure it won't happen with Adobe Reader. I can't test it now but will later using LyX. — Werner, Jul 24 '13 at 16:09
The emphasis on a viewer issue means that you're not doing anything wrong, and there's actually nothing you can do to fix it. Sure you can use a viewer that shows it nicely for you, but someone else might only have a viewer that doesn't render the output properly. Braces like these are built up of smaller pieces to allow for any kind of stretching. — Werner, Jul 24 '13 at 16:52

score 3 · Answer 1 · answered Jul 24 '13 at 20:07

Thanks for the comments.

Just in case anyone actually is still looking for sorting the issue in LINUX, i am still answering the question myself - please let me know if this is inappropriate:

Removing amsmath, and using txfonts sets the fonts to URW, i love it. BUT TXFONT would cause some characters to go mad, e.g. in mathmode, the character S followed by E would cause a nasty space between S and E. pxfont would solve this. Do not also forget to add mathtools, if you plan to use under- and overbrace /under- and overset.

This solves the issue with Okular.

Lyx underbrace is broken

1 Answers1