Problem 1720. Do the line-segments intersect?

You are given two line segments. Do they cross?
Consider one segment as (x1,y1) to (x2,y2), the other segment as (x3,y3) to (x4,y4). You are given a = [x1 y1; x2 y2]; b = [x3 y3; x4 y4]. Return tf=true if a and b intersect or tf=false if a and b do not touch.
When lines do intersect they will do so cleanly at exactly one non-endpoint. That is, they will not nest, overlap, or "kiss" at the endpoints.
Examples
a = [0,0; 1,1];
b = [0,1; 1,0];
tf = true
a = [0,0; 1,0];
b = [0,1; 1,1];
tf = false

Solution Stats

27.2% Correct | 72.8% Incorrect
Last Solution submitted on Nov 22, 2023

Problem Comments

Solution Comments

Show comments

Problem Recent Solvers67

Suggested Problems

More from this Author50

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!