Doud's elltors()

[Igor Schein <igor@txc.com>]

Hi,

? elltors(ellinit([0,6,0,-3,0]))
  ***   ellinit data not accurate enough. Increase precision.

No matter how high I set precision, it eventually gives the
message above.  Looks like something is not converging.  

Lutz-Nagell works instantaneous on the same curve.

Thanks

Igor