This problem seems to be related to the AIAA class that I have to use to submit the paper that I am writing, as I cannot reproduce it with other classes.

The latest Aiaa.cls class file can be retrieved from here (link found at this page).




\boldsymbol{S}\left( u \right) = 
x\left( u \right) = a_{x} \cdot u\\
y\left( u \right) = a_{y} \cdot u\\
z\left( u \right) = a_{z} \cdot u

Visualization of the problem:

enter image description here

How can I get rid of that extra white space/ extra long upper curly brace?

  • I don't have this problem with your code, which I had to modify: the class is aiaa-tc. There must be something else in your real code.
    – Bernard
    Apr 21, 2016 at 10:15
  • I also did not get this problem. I compiled with aiaa.cls V2.4 (22 FEB 1999) and had to download dropping.sty (V0.12, JUN 12 1997). Apr 21, 2016 at 10:21
  • @Bernard I compiled the code posted and the result is in the image. how did you came to the aiaa-tc class?
    – Federico
    Apr 21, 2016 at 10:21
  • With AIAA I have an error message: cls unknown. So I read the documentation. How comes you can compile?
    – Bernard
    Apr 21, 2016 at 10:24
  • @Bernard I have dowloaded the aiaa.cls file
    – Federico
    Apr 21, 2016 at 10:24


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