# Question:Plotting multiple inequality conditions, superimpose onto each other

## Question:Plotting multiple inequality conditions, superimpose onto each other

Maple

Hello,

I am trying to display multiple inequality conditions in one graph. Having read the question and answer for a similar problem between Meltz and Professor Douglas B. Meade (http://www.mapleprimes.com/node/3389/), I have tried the following command which I believed correct but does not work. Could somebody help me, please?

plot1:=with(plots);inequal({f,g,h,j}, phi_a=0..1, phi_Ia=0..1, optionsfeasible=(color=blue));

plot2:=with(plots);inequal({k,l,m,n}, phi_a=0..1, phi_Ia=0..1, optionsfeasible=(color=green));

plot3:=with(plots);inequal({s,t,u,v}, phi_a=0..1, phi_Ia=0..1, optionsfeasible=(color=red));

plot4:=with(plots);inequal({w,x,y,z}, phi_a=0..1, phi_Ia=0..1, optionsfeasible=(color=pink));

plot5:=with(plots);inequal({b,p,d,r}, phi_a=0..1, phi_Ia=0..1, optionsfeasible=(color=pink));

display([plot1, plot2, plot3, plot4, plot5]);

Note that the functions within the square brackets are not copied here for the sake of brevity but all these are well defined and plot commands yield what I expected, but the only part which does not work is the last display command.