Line intersection without polyfitting ?

is it possible to get the values of intersections without Polyfitting the Data? just from the plot itself

Answer 1

[Jan]

From the plot?! Why would polyfit be useful for finding the intersection of lines? Do you mean the polyxpoly command?

Did you ask an internet search engine for "Matlab intersection lines" already? You will find:

• https://www.mathworks.com/matlabcentral/fileexchange/35606-line-line-intersection--2d-
• https://www.mathworks.com/help/map/ref/polyxpoly.html
• https://www.mathworks.com/matlabcentral/fileexchange/22441-curve-intersections
• https://blogs.mathworks.com/loren/2011/08/29/intersecting-lines/

[ahmed taha]

Thanks the third link (InterX) is amazing , I used to polyfit the points and then polyval them and store the data and then use find(y1 == y2) but that was really messy cuz it required identical sizes