# [pstricks] Solving equations with pstricks (draw one-thid of an angle)

Herbert Voss Herbert.Voss at FU-Berlin.DE
Tue May 22 10:57:06 CEST 2012

Am 22.05.2012 10:03, schrieb Plamen Tanovski:

> To do so, I have to find the points E and D, so, that
> - E is on the circle OX
> - D is on the line BO
> - DE = OE = OX = r
> - X, E, D are on the same line
>
> I've looked at pst-eucl, but I can't see any way to find D and E.

additional to what Christoph wrote a solution with Theta and R
as parameter and without pst-eucl (using it is always a good choice!)

\listfiles
\documentclass{article}

\begin{document}

\pspicture(-4,-1)(8,5)
\pcline[nodesepB=-0.5](O)(X)