I have problem with the bracket size. If I have a long equation which is to be written in two lines as it is in the attachment file. The size of the brackets differ which gives a very bad appearence.
Can someone help me to get this problem solved.
You have to use the command \vphantom. The usage is described in chapter 29 (page 55) of this document:
http://www.perce.de/LaTeX/math/Mathmode-TeX.pdf
