id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
23	printing of symbolic expressions needs improvement	Stephen Siegel	ywei	"The symbolic expressions, when printed, do not contain parentheses, so one cannot tell how the operations are grouped.  For example:

0<=X0&&X0*-1+2==0||0<=X0*-1+1

Look at the Expression classes in the model package to see one way to handle this easily.   Each expression class provides two methods to return a string, one which is used whenever the expression has to occur as a subgroup inside of another expression.  You can just copy what is done there."	enhancement	closed	minor		symbolic	1.0	fixed	print symbolic parentheses	ywei@…