Answered
I am teaching Linear Programming (in two variables) and our custom is to create a feasible region by shading out the area which is outside the feasible region. Most packages seem to shade inside as does GeoGebra. For example y>x on GeoGebra shades above the diagonal line (excluding the line) but I would like to shade below the line.
This is for year 13 students who are not that confident with Algebra so asking them to simply invert the inequality won't cut it. Is there a setting you can use to switch the shading?
At the moment, we are using Autograph V3.3 which shades as required by default but its not a great application. A browser based solution would be much better.
Thanks
Tom
The same question 
as integrals, polygons etc inequalities are objects and by creating them they (=the regions that match the inequation) get a color. That's the logic behind the coloring. In the Style tab you can choose inverted filling to color the other side. However not as an automatic setting.
chris
or define ever ¬(...........) like command for inverting filling
or request inverse filling in preferences-->default-->inequality-->style in ver5 and settings default in ver6
or create a custom tool ie: inverse(y<x)
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