|   | 1 |  initial version  | 
You can do:
sage: a = numerical_approx(elliptic_j(sqrt(-5)))
sage: a.str(no_sci=2)
'1264538.9094751414 - 0.0000000010872319872418675*I'
 Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.
 
                
                Copyright Sage, 2010. Some rights reserved under creative commons license. Content on this site is licensed under a Creative Commons Attribution Share Alike 3.0 license.