👉 In mathematics and computer science, a "circumsail" is a mathematical concept related to finding the shortest path between two points in a graph. It is often used for solving problems involving planar graphs, such as the problem of finding the shortest path from one vertex to another on a connected graph. A circumsail is defined as a set of vertices that forms a closed loop on the graph and passes through all of its edges. The goal of a circumsail is to find the shortest