# How to get different colours for different regions for this problem

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Atom on 17 Jun 2019
Edited: Image Analyst on 30 Jun 2019
How to get different colours for different regions for this problem? Here are 10 regions and I want to colour the regions? How to modify the code to get the desired result?
x=0:.00001:1;
y=x.*x;
plot(x,y,'r')
hold on
z=sqrt(x);
plot(x,z);
hold on
y=x;
plot(x,y,'g')
y=1-x;
hold on
plot(x,y,'k')
x=0:.00001:.334;
y=1-2*x;
hold on
plot(x,y,'r')
axis([0 1 0 1]) ##### 2 CommentsShowHide 1 older comment
Atom on 17 Jun 2019
How to do that? Please show me by one example using the code above

Robert U on 17 Jun 2019
Edited: Robert U on 18 Jun 2019
Hi pallav pal,
one example patch as requested. All others can be drawn accordingly.
x1=0:.00001:1;
x2=0:.00001:.334;
y1=x1.*x1;
z1=sqrt(x1);
y2=x1;
y3=1-x1;
y4=1-2*x2;
plot(x1,y1,'r')
hold on
plot(x1,z1);
plot(x1,y2,'g')
plot(x1,y3,'k')
plot(x2,y4,'r')
axis([0 1 0 1])
area1 = min(y1,y3);
patch('XData',[x1,0],'YData',[area1,0],'FaceAlpha',0.7,'FaceColor','red')
Kind regards,
Robert
Atom on 30 Jun 2019
thanks a lot