# [pstricks] Factor tree supporting comments

Sun Mar 8 17:01:43 CET 2009

Hmmm... Page 146 seems to indicate the use of \SpecialCoor. I didn't
use that, but things look OK.

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My code snippet for the above:

\begin{example}\label{example:PrimeFactor1}
Express 24 as a product of prime factors.

\medskip\noindent\textbf{Solution.} We use a factor tree to break 24
down into a product of primes.

\pstree[nodesep=3pt,treesep=1,levelsep=0.7cm]{\Tr{24}}{%
\pstree{\Tr{4}}{\Tr{2}\Tr{2}}
\pstree{\Tr[name=six]{6}}{\Tr{2}\Tr[name=three]{3}}}
\rput[l](0.25\linewidth,0|six){\color{darkred}$24=4\cdot 6$}%
\rput[l](0.25\linewidth,0|three){\color{darkred}$4=2\cdot 2$ and $6=2 \cdot 3$}%
\pcline[linestyle=dotted,nodesepA=5pt,nodesepB=0.5em](six)(0.25
\linewidth,0|six)%
\pcline[linestyle=dotted,nodesepA=5pt,nodesepB=1em](three)(0.25
\linewidth,0|three)%

\bigbreak

Am I gonna be OK here?

D.
On Mar 7, 2009, at 11:09 PM, Herbert Voss wrote:

David Arnold schrieb:
> Very nice! Exactly what I need. However, I cannot find this in the
> documentation anywhere:
>
> \rput[rc](\linewidth,0|A){1.}%
>
> What does the 0|A mean?

takes the x argument from the first point \linewidth,0 and
the y argument from the second point A
See documentation, page 146
http://www.dante.de/CTAN/graphics/pstricks/base/doc/pstricks-doc.pdf

> And while I am on this, another one. What does this mean?
>
> linecolor=black!10

10% of color black

Herbert
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