T=d ld mf
V=x,y,z
R=-1.3,1.3,.075

# This function is too hard for 'float' accuracy

F=(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)* \
  (x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)+ \
  2*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)- \
  x*y*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)+ \
  x*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)
C=(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)* \
  (x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)+ \
  2*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)- \
  x*y*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)+ \
  x*(x+x+x+x+x+x+x+x+x+x+x+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z+y+z)
