#****o* ./QPlotArea
# NAME
#  QPlotArea
#
# USAGE
#  Option for QProbabilityPlot
#
#  Sets the area for the line plots in the form {{xmin,xmax},{ymin,ymax}}, The standard is {{-1,1},{0,1}}.
#  The contour plot is plotted int he area {{-m,m},{-m,m}} with m=Max[xmin,xmax,ymin,ymax]
#
#***