d1:X = [-1.0e8,1.0e8]
d2:Y = [-1.0e8,1.0e8]
d3:Z = [-1.0e8,1.0e8]

c1:13 + Y^2 + Z^2 - 24*Y*Z + Y^2*Z^2 = 0
c2:13 + Z^2 + X^2 - 24*X*Z + Z^2*X^2 = 0
c3:13 + X^2 + Y^2 - 24*X*Y + X^2*Y^2 = 0
