Math & Science ⇒ Multiple Lines in Equation with opening Brace

[akhmel]

I have equation which starts with one line then goes equal sign, then big opening curly brace and three lines of possible answers, depending on certain conditions. How do I program in LaTeX this big bracket and three lines?

[localghost]

Usually this is done by the »cases« environment from the amsmath package. There are packages that enhance it.

• mathtools
• cases

Thorsten