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+#print
+It is usually wise to do your formatting with
+the "-ms" macro package developed by Mike Lesk, since
+it does a lot of dirty work for you without any effort
+on your part.
+One of the things "-ms" does is to arrange that equations
+are "displayed" - that is, that they are neatly centered
+and set off from the surrounding text.
+Most of the "-ms" package is described in another script
+called "macros", which you may have already learned.
+For now, we need only know this much: to use "-ms"
+with neqn, add "-ms" to your command line, right after
+the word "nroff", like this
+
+  neqn files... | nroff -ms -Txxx
+
+Notice where the "-ms" goes.
+
+In this directory is a file called "Example".
+To prove that you can type the "-ms" in the right place,
+print "Example" with "-ms", then type "ready".
+#once #create Example
+.PP
+This is a tiny little text
+that includes one equation
+or at least it will when you find this line:
+.EQ
+x sub i = y sub i
+.EN
+and convert it into an equation.
+(Naturally I changed it.)
+.pl 1
+#copyin
+#user
+#uncopyin
+grep 'neqn Example *| *nroff -ms' <.copy >/dev/null
+#log
+#next
+1.1d 10