Common utilities
Desktops/Graphical User Interfaces
Multimedia
Database Servers
Database Clients
Network Services
Security Auditing
Network Utilities
Filesystems
Filesystem Utilities
Desktop Publishing
Conversion
... <math>ax^2+bx+c=0</math> Dividing our quadratic equation by a, we have <math> x^2 + \left( \frac{b}{a} \right) x + ...