LaTeX.org

I have two points, let's say


\rput(1,1){\circlenode{A}{A}}
\rput(4,8){\circlenode{B}{B}}
\ncline{A}{B}


and I want to place a dot, i.e. with \psdot, on the line between A and B at distance 1 unit from A.
So far I could only manage to get the midpoint of segment AB with \pmode, but how to get to ...

Dear community,

I'm having trouble drawing an Euler traversal of a tree. You can see an example of an Euler traversal on the picture on the corrsponding wiki page .

As an example, I have the following simple tree:


\pstree{\Tc[name=n1]{3pt}\nput{90}{\pssucc}{$1$}}{%
\Tc{name=n2]{3pt}\nput{270 ...