<div>In Chapter 5, we use this method to prove the lower bound of convex cover for closed unit arcs is 0.1. There are two files:</div><div><br></div>cvhN2 is a function to find the area of convex hull of a circle, a rectangle, and a line.<div><br></div><div>checkminNB5 is a function to prove the bound by Box-search Algorithm.</div>