0(x.y):.
2 • (x 4 i • y) 4 I + i yfi 4
N := 6000
r„:=md(l) n:=0..N *,:-0 y0:-0
y. o -
-ioqo;
IOOO
1000
2x4 3y-0.75 4 f.-l.35 x - 3y 4 z :x 2.9 y 4 2z 4 St := 3
0 J5x 4 3.2z 4 2t := 7