Gunnar wrote:
In many textbooks you "show" that (a+b)(a+b)=a^2+2ab+b^2 by drawing arrows like in the attached image.
How can I do that in LyX?
The LaTeX-package "pstricks" provides commands to draw these arrows, have a look at its manual. You can use all LaTeX-commands within LyX as ERT.
regards Uwe
