PEz+.jpg, x^2+y^2=2*z
PEz-.jpg,x^2+y^2=-2*z
PEy+.jpg,	 x^2+z^2=2*y
PEy-.jpg,	x^2+z^2=-2*y
PEx+.jpg,	 z^2+y^2=2*x
PEx-.jpg, 	z^2+y^2=-2*x
PHz+.jpg, 	x^2-y^2=2*z
PHz-.jpg, 	x^2-y^2=-2*z
PHy+.jpg, 	x^2-z^2=2*y
PHy-.jpg, 	x^2-z^2=-2*y
PHx+.jpg, 	z^2-y^2=2*x
PHx-.jpg, 	z^2-y^2=-2*x
Ex.jpg, ,	2*x^2+y^2+z^2 =1
Ey.jpg, 	x^2+2*y^2+z^2 =1
Ez.jpg, 	x^2+y^2+2*z^2 =1
Hz1.jpg, 	 x^2+y^2-z^2=1
Hz2.jpg, 	 x^2+y^2-z^2=-1
Hy1.jpg, 	 x^2-y^2+z^2=1
Hy2.jpg, 	 x^2-y^2+z^2=-1
Hx1.jpg, 	 -x^2+y^2+z^2=1
Hx2.jpg, 	 -x^2+y^2+z^2=-1

planxy.jpg, 	x*y=0
planxy.jpg, 	z*y=0
planxz.jpg, 	x*z=0

planxy.jpg, 	x*y=1
planxz.jpg, 	z*y=1
planzy.jpg, 	x*z=1

conex.jpg,  x^2=y^2+z^2
coney.jpg,  y^2=x^2+z^2
conez.jpg,  z^2=y^2+x^2
