Help is available on the following:

`		difference	last		plistp		setcslsloc
<		do.until	left		plists		setcursor
<=		do.while	lessequalp	pllist		seteditor
<>		dribble		lessp		poall		.setfirst
=		edall		list		pon		setheading
>		edit		listp		pons		sethelploc
>=		editfile	listtoarray	pop		setitem
-		edn		ln		popl		.setitem
/		edns		load		popls		setlibloc
*		edpl		loadnoisily	pops		setmargins
+		edpls		loadpict	pos		setpalette
allopen		edps		local		pot		setpen
allowgetset	emptyp		localmake	pots		setpencolor
and		eofp		log10		power		setpenpattern
apply		epspict		logoplatform	pprop		setpensize
arc		.eq		logoversion	prefix		setpos
arctan		equalp		lowercase	primitivep	setprefix
arity		erall		lput		primitives	setread
array		erase		lshift		print		setreadpos
arrayp		erasefile	.macro		printdepthlimit setscrunch
arraytolist	ern		macroexpand	printout	.setsegmentsize
ascii		erns		macrop		printwidthlimit settemploc
ashift		erpl		make		procedurep	settextcolor
back		erpls		map		procedures	setwrite
background	erps		map.se		product		setwritepos
backslashedp	erract		.maybeoutput	push		setx
beforep		error		mdarray		queue		setxy
bitand		exp		mditem		quoted		sety
bitnot		fence		mdsetitem	quotient	shell
bitor		filep		member		radarctan	show
bitxor		fill		memberp		radcos		shownp
buried		filter		minus		radsin		showturtle
buriedp		find		modulo		random		sin
bury		first		mousepos	rawascii	splitscreen
buryall		firsts		name		readchar	sqrt
buryname	for		namelist	readchars	standout
butfirst	foreach		namep		reader		startup
butfirsts	forever		names		readlist	step
butlast		form		nodes		readpos		stepped
button		forward		nodribble	readrawline	steppedp
buttonp		fput		norefresh	readword	stop
bye		fullprintp	not		redefp		substringp
cascade		fullscreen	notequalp	reduce		sum
case		fulltext	numberp		refresh		tag
caseignoredp	gc		openappend	remainder	test
catch		gensym		openread	remdup		text
char		global		openupdate	remove		textscreen
clean		goto		openwrite	remprop		thing
clearscreen	gprop		or		repcount	throw
cleartext	greaterequalp	output		repeat		to
close		greaterp	palette		rerandom	towards
closeall	heading		parse		reverse		trace
combine		help		pause		right		traced
cond		hideturtle	pen		round		tracedp
contents	home		pencolor	rseq		transfer
continue	if		pendown		run		turtlemode
copydef		ifelse		pendownp	runparse	type
cos		iffalse		penerase	runresult	unbury
count		iftrue		penmode		save		unburyall
crossmap	ignore		penpaint	savel		unburyname
cslsload	int		penpattern	savepict	unburyonedit
cursor		invoke		penreverse	screenmode	unstep
define		iseq		pensize		scrunch		until
definedp	item		penup		sentence	untrace
.defmacro	keyp		pick		setbackground	uppercase
dequeue		label		plist		.setbf		usealternatenam
wait		window		wordp		writepos	xcor
while		word		wrap		writer		ycor
