TIB: graphing in a program


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TIB: graphing in a program




I have a question for the 89/92 users.  How do I graph something while in a 
program.  What I have now is a string (t3) which has the equation "3x+2" or 
something like that.  It's user defined.  Anyway, I use the Graph function 
and because it's a string I do this:

:Graph expr(t3)

Now, when I do this, it will indeed graph the equation.  The only problem is 
that it never stops.  It says the graph is busy so I wait and wait and wait 
but nothing happens.  When I push on it takes me to that part of the program. 
 Is there a different way to do this?  If not, how do I get the darned thing 
to stop?  I've tried almost everything.

THANX
Dan