Welcome to 9math!
This site is for those who are interested in mathematics, whether they want to study it for school or as a hobby.
If you have math questions you can ask them on the forum.
On this site you can write nice mathematical expressions and equations by using Latex and the visual Equation Editor:
You can use the mouse to play with the interactive geometry figures.
You can also draw functions' graphs fast:
Look at the recent posts to keep up with the latest activity.
Also read the FAQ and Help for more information.