is an option for plotting functions that specifies the style in which boundaries of regions should be drawn.
- The following settings can be used:
Automatic draw thin black boundary lines None draw no boundary lines g draw with specified graphics directives
- BoundaryStyle is always used at the boundary of regions defined by RegionFunction.
- For 3D graphics, it is also used at the boundary of regions defined by PlotRange.
Introduced in 2007