User guide

33-21
[M,
4]
yendingpoint.
[M,
5]
ratioofthelengthofthearrowheadtohalf
itswidth.
[M,
6]
sizeofarrowheadininches.
[M,
7]
typeandlocationofarrowheads.This
integernumberwillbeinterpretedasa
decimalexpansionmn,forexample:if10,
thenm=1,n=0.
 m,typeofarrowhead:

0
solid

1
empty

2
open

3
closed
 n,locationofarrowhead:

0
none

1
atthefinalend

2
atbothends
[M,
8]
colorofarrow,seePQG GRAPHICS
COLORS,CHAPTER35.
[M,
9]
coordinateunitsforlocation:
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