Graph Theory & Trees

Tree

A tree is a connected undirected graph with no cycles.

Meaning

What Is Tree?

A tree is a connected undirected graph with no cycles.

A tree is a connected undirected graph with no cycles.

Examples

Examples of Tree

1A file-system hierarchy can be modeled as a tree.
Understand

Formula and Key Points

Formula / rule
For n vertices, a tree has n−1 edges.
  • Know the definition and standard notation for Tree.
  • Be able to recognise or compute tree in a small example.
  • Connect the concept to nearby topics in the same subject before using it in larger CSE problems.
CSE Connection

Why This Matters in Computer Science

Used in networks, routing, dependency graphs, compilers, social networks, file systems and graph algorithms.

FAQ

Tree: Frequently Asked Questions

What is Tree?

A tree is a connected undirected graph with no cycles.

Why is Tree useful in computer science?

Used in networks, routing, dependency graphs, compilers, social networks, file systems and graph algorithms.