flag if plot Intersects itself

I have an array of size n by 2 where column one has the x coordinates whilst column 2 has the y coordinates. I plan to plot these coordinates but I wanted to know if there is an easy way to know if this plot is going to intersect itself across the range of points n without manually plotting and observing the resuly.

[Walter Roberson]

No, there are ways but no easy ways.

Plotting is not robust enough to determine this, as the distance between lines might be less than the width of a pixel.

Answer 1

[Bruno Luong]

I gave an answer to a similar question here

https://fr.mathworks.com/matlabcentral/answers/1759440-looking-for-where-line-intersects-on-itself?s_tid=srchtitle