find intersection of graph

I have this graph like this

plot ([0,1,1,0,0,1,0.5,0],[0,1,0,1,0,0,1.5,0],'-')

how can I find all intersections in this graph?

Answer 1

[madhan ravi]

https://www.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections?focused=5165138&tab=function

[NA]

It is not giving me any intersection

[madhan ravi]

upload the code that you tried

[NA]

x1=[0,1,1,0,0,1,0.5,0]
y1=[0,1,0,1,0,0,1.5,0]
P = InterX(x1,y1); 
plot(x1,y1,P,'ro')

[madhan ravi]

x1=[0,1,1,0,0,1,0.5,0]
y1=[0,1,0,1,0,0,1.5,0]
P = InterX([x1;y1]); % P is the intersection of curves 
plot(x1,y1,P(1,:),P(2,:),'ro')