**Vertex**: It is the point of intersection of the edges of the polyhedron. A**vertex**is also known as the corner of a polyhedron. A**vertex**is also known as the corner of a polyhedron. The plural of**vertex**is called vertices.**Definition**of Ray explained with real life illustrated examples. Also learn the facts to easily understand**math**glossary with fun**math**worksheet online at SplashLearn.In graph theory, a

**vertex cover**(sometimes node cover) of a graph is a set of vertices that includes at least one endpoint of every edge of the graph.In computer science, the problem of finding a minimum**vertex cover**is a classical optimization problem.Sep 30, 2021 ·

**Point estimate**in statistics is calculated from sample data and used to**estimate**an unknown population parameter. Learn about the**definition**, formula, and real-world examples of**point estimate**in ...Jan 10, 2022 ·

**Dijkstra's algorithm**is used to find the shortest path from a starting node to another node in a graph. Explore the**definition**and examples of**Dijkstra's algorithm**and learn how to use it on ...An internal

**vertex**(or inner**vertex**or branch**vertex**) is a**vertex**of degree at least 2. Similarly, an external**vertex**(or outer**vertex**, terminal**vertex**or leaf ) is a**vertex**of degree 1. An irreducible tree (or series-reduced tree ) is a tree in which there is no**vertex**of degree 2 (enumerated at sequence A000014 in the OEIS ).Nov 22, 2021 · To help students, teachers, and others with

**math**problems, you can use structured data to indicate the type of**math**problems and links to step-by-step walkthroughs for specific**math**problems. Here's an**example**of how**math**solvers may look in**Google**Search results (the appearance is subject to change):