v0=x0+x1x1 v1=v02×10-6 y0=v1+15sgnv1v0
if1<x0
y2=x1
else
y2=v1
ifx02
y3=x1
else
y3=v1
ifx0==x1
y4=x1
else
y4=v1
if3x0
v2=v0
else
v2=v1
if4>x0
y5=5
else
y5=v2
y6=5×4x0 y1=x1 y7=3