How to find intersection between two line

Could anyone help me with this? I'm trying to find all of the points where my y and y_line interection. Thank you so much.

Answer 1

[KALYAN ACHARJYA]

idx=find(x==y)

And from the index, you get the value.

[Rik]

This will only turn up values that are exactly equal. Considering that float rounding errors are likely, this could miss several intersections.

Answer 2

[Rik]

tol=2*eps;
L_intersect = abs(y-y_line.Value) < tol;
x(L_intersect)
%you could use find(L_intersect), but you don't really need it here