function square(a,b,options)
{var one=Rotation(a,b,3*Math.PI/2,'hidden')
var two=Rotation(b,a,Math.PI/2,'hidden')
Segment(a,two,'')
Segment(b,one,'')
Segment(one,two,'')
return [one,two]
}
function pyth(a,b,n)
{
var r1=RotationMarkedAngle(a,b,p,s[1],s[0],'hidden')
r1=DilationSegmentRatio(r1,b,seg2,h,'hidden')
Segment(b,r1,'')
Segment(a,r1,'')
var sq1=square(a,r1,'')
var sq2=square(r1,b,'')
if (n<5) {
pyth(sq2[1],sq2[0],n+1)
pyth(sq1[1],sq1[0],n+1)
}
}
a=Point(120,385,'')
b=Point(170,385,'')
Segment(a,b,'')
s=square(a,b,'')
h=Segment(s[0],s[1],'hidden')
m=Midpoint(h,'hidden')
c=Circle(m,s[1],'hidden')
p=Point_on_object(c,3*Math.PI/2,'label(Move)')
seg1=Segment(s[0],p,'')
seg2=Segment(s[1],p,'')
st2=square(p,s[0],'')
st1=square(s[1],p,'')
pyth(st1[1],st1[0],0)
pyth(st2[1],st2[0],0)
AnimateButton(10,10,'Animate',[p,c],[0.1],[0],[0],'')