| 1 | initial version |
This is a known bug, related to some recent change in the treatment of derivatives of symbolic functions, cf. this discussion. In your case, the bug shows up because of both G[1,1]=diff(f(R),R) and the square root in S[1,1]=R^(0.5).
A fix is under preparation; hopefully it will be included in Sage 7.6.
| 2 | No.2 Revision |
This is a known bug, related to some recent change in the treatment of derivatives of symbolic functions, cf. this discussion. In your case, the bug shows up because of both G[1,1]=diff(f(R),R) and the square root in S[1,1]=R^(0.5).
A fix is under preparation; hopefully it will be included in Sage 7.6.
EDIT: the fix is ready, cf. the comment below
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.