On 4/5/2010 11:53 PM, josef.pktd at gmail.com wrote: > what is > np.sqrt(np.finfo(float).eps) > on your machine? >>> np.finfo(float).eps 2.2204460492503131e-16 >>> np.sqrt(np.finfo(float).eps) 1.4901161193847656e-08 Alan (Python 2.6.5 (32bit) under Vista (64bit))