maxima by example \ plot2d \set title



Hi,

I see small difference between "maxima by example" ( which is a great 
source of informations) :

In mbe2plotfit.pdf there is :

[gnuplot_preamble,"set title ?Two Functions?;"])$

It do not work for me.
I must use :

my_preamble:"set title 'Apollonian Gasket";

I mean without last ' sign and without ; sign


Adam

(%i43) build_info()$
Maxima version: 5.20.1
Maxima build date: 8:52 2/16/2010
Host type: x86_64-unknown-linux-gnu
Lisp implementation type: GNU Common Lisp (GCL)
Lisp implementation version: GCL 2.6.7