during part of the session.
display the graph in Emacs itself using rough character graphics.
Press @kbd{q} when you are done viewing the character graphics.
-Next, let's add the line we got from our least-squares fit:
+Next, let's add the line we got from our least-squares fit.
+@ifinfo
+(If you are reading this tutorial on-line while running Calc, typing
+@kbd{g a} may cause the tutorial to disappear from its window and be
+replaced by a buffer named @samp{*Gnuplot Commands*}. The tutorial
+will reappear when you terminate GNUPLOT by typing @kbd{g q}.)
+@end ifinfo
@smallexample
@group