[pstricks] markZeros

[Herbert Voss]

McGarry Vince wrote:
> The following incorrectly marks a zero at the x-coordinate of vertex  of 
> the parabola.
> 
> \documentclass{minimal}
> 
> \usepackage{pstricks}
> \usepackage{pstricks-add}
> \usepackage{pst-func}
> 
> \begin{document}
> 
> \psset{xunit=0.2,yunit=0.06,Dx=5,Dy=20,plotpoints=720}

\psset{xunit=0.2,yunit=0.06,Dx=5,Dy=20,plotpoints=720,dZero=0.05}

dZero, the step for Newton -> documentation

Herbert