MathGroup Archive 2009

[Date Index] [Thread Index] [Author Index]

Search the Archive

combining contourplot and regionplot

  • To: mathgroup at
  • Subject: [mg98427] combining contourplot and regionplot
  • From: "Cristina Ballantine" <cballant at>
  • Date: Thu, 9 Apr 2009 05:57:38 -0400 (EDT)

Given a complex function (say the Gamma function), I would like to plot 
all points (x,y),  -10<x<10, -10<y<10,  that map to the interval (1, 
infinity). I need to plot all points with Arg[Gamma[x+I*y]]==0 and 
Abs[Gamma[x+I*y]]>1. Solutions to the equation can be plotted with 
ContourPlot. Solutions to the inequality can be plotted with RegionPlot. 
But how do I plot points that satisfy BOTH the equation and the inequality?
 A similar question has been asked on the Forum before but did not receive 
an answer. I am hoping this time someone can help. Thank you.


  • Prev by Date: Re: Hyperlinks
  • Next by Date: Re: how to build pattern for a square matrix of reals?
  • Previous by thread: Re: Simplifying an expression for computational, not aesthetic
  • Next by thread: Re: combining contourplot and regionplot