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Question: Two inequal and display

Question:Two inequal and display

tatan2501 202 Maple
plot graph
December 04 2009
0

I'm trying to plot two "inequal" using "display". I wrote the following code:

restart:
with(plots):
a:=inequal({y<2,y>0,x>1,x<2},x=0..4,y=0..4,
optionsfeasible=(color=blue),optionsopen=(color=white,thickness=0),optionsclosed=(color=white,thickness=0),optionsexcluded=(color=white)
):
b:=inequal({y<3,y>0,x>2,x<3},x=0..4,y=0..4,
optionsfeasible=(color=blue),optionsopen=(color=white,thickness=0),optionsclosed=(color=white,thickness=0),optionsexcluded=(color=white)
):
display(a,b);
 

When I execute the code, this only plot the "inequal" defined in a. How can I plot a and b in a same graph?

 

Sorry about my English.

 

Thanks.
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