|   | 1 |  initial version  | 
Sage gives you the correct answer. You can check it for example in wolframalpha.
Ei
is the exponential integral (and not a product).
To obtain better formatted code you can copy-paste your code,
mark it and use 101... icon.
|   | 2 |  No.2 Revision  | 
Sage gives you the correct answer. You can check it for example in wolframalpha.
Ei
is the exponential integral (and not a product).
To obtain a better formatted code you can copy-paste your code,
mark it and use   the 101...   icon.  
 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.