clc
clear
x=[32 22.2 41.6 10.1 50.5]
y=[0.52992 0.37784 0.66393 0.17537 0.63608]
for i=1:1:5
X=[x(1,i)  y(1,i)]
disp(X)
end
a=27.5
for i=1:4
    A(1,i)=((a-x(1,i))*y(1,i+1)+(x(1,i+1)-a)*y(1,i))/(x(1,i+1)-x(1,i))
end
for i=1:3
    B(1,i)=((a-x(1,i))*A(1,i+1)+(x(1,i+2)-a)*A(1,i))/(x(1,i+2)-x(1,i))
end
for i=1:2
    C(1,i)=((a-x(1,i))*B(1,i+1)+(x(1,i+3)-a)*B(1,i))/(x(1,i+3)-x(1,i))
end
D(1,1)=((a-x(1,1))*C(1,2)+(x(1,5)-a)*C(1,1))/(x(1,5)-x(1,1))
out=[0,x(1,1),y(1,1) ]
disp(out)
out1=[1,x(1,2),y(1,2), A(1,1) ]
disp(out1)
out2=[2,x(1,3),y(1,3), A(1,2), B(1,1),C(1,1),D(1,1) ]
disp(out2)
out3=[3,x(1,4),y(1,4), A(1,3), B(1,2),C(1,2) ]
disp(out3)
out4=[4,x(1,5),y(1,5), A(1,4), B(1,3) ]
disp(out4)