D.9.1. - trees

#  @(#)trees	4.1  19 Sep 1992 CSS
#  Certified Scientific Software's C-PLOT

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# Select no ticks and no numbers
ty 528 528 0
cs s 10
ra 0 10 0 10
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# Generate 30 random points between 0,0 and 5,5
fn calc.4 n=30; x=rand(5); y=rand(5);
sy 24
zp
fn . x=rand(5)+5; y=rand(5);
sy 25
zp
fn . x=rand(5); y=rand(5)+5;
sy 26
zp
fn . x=rand(5)+5; y=rand(5)+5;
sy 23
zp
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