\cases - Tex Command

NAME

\cases - for piecewise-defined functions.

SYNOPSIS

{ \cases{ <math> & <math> \cr <repeat as needed> }}

DESCRIPTION

The result is of class REL (binary relation), so it has the spacing of a relation.

EXAMPLE

1. |x| = 
   \cases{
   x  & \text{if } x\ge 0\cr
   -x & \text{if } x\lt 0
   } 
   

   $ |x| = \cases{ x & \text{if } x\ge 0\cr -x & \text{if } x\lt 0 } $