about separating the variable.

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Ejay Kasai
Ejay Kasai 2011-9-13
i have x = 0 and 2. is there a way to separate those numbers using x1=0 and x2=2 ? i'll use this using programming in matlab.

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Wayne King
Wayne King 2011-9-13
Yes, you can also store them in a vector
x = [0 2];
% or as a column vector
x =[0;2];
and then access them by their indices:
x(1)
x(2)
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Ejay Kasai
Ejay Kasai 2011-9-13
ok so, this is the program
poly1=input('First polynomial function: ','s');
poly2=input('Second polynomial function: ','s');
syms y;
z1=solve(poly1,'y');
z2=solve(poly2,'y');
xi=solve(z1-z2);
yi(1)=eval(subs(z1,xi(1)));
yi(2)=eval(subs(z1,xi(2)));
ezplot(poly1)
hold all
ezplot(poly2)
plot(xi,yi,'o')
what if the user input poly1: y=x^2 and ply2: y=2*x then xi will be 0 and 2. and i want to separate those two number of xi to x1=0 and x2=2 automatically if the program finds the two x's.
Ejay Kasai
Ejay Kasai 2011-9-13
i got it. Thank you very much!

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