[sage-edu] Re: unevaluated input (det, int, ....)
On Apr 19, 12:42 pm, "ma...@mendelu.cz" wrote: > Hell, I think that my question is related > tohttp://groups.google.cz/group/sage-support/browse_thread/thread/7cb33... > > How can I write a function which takes determinant of matrix A below > and perfoms Laplace expansion along the last row, and shows the output > without evaluating 2x2 subdeterminants > > A=matrix([[1,2,3],[3,2,0],[1,0,1]]) > A > > Is this possible in Sage? (I think than in maxima it is sufficient to > put ' before each determinant call) Dear Robert, Probably this belongs on sage-support, and I am forwarding this there. Unfortunately I do not know the answer but I suppose it should be possible in Sage if it is possible in Maxima, though perhaps it would be somewhat "wordy". - kcrisman --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-edu@googlegroups.com To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~--~~~~--~~--~--~---
[sage-edu] Re: unevaluated input (det, int, ....)
On Sun, Apr 19, 2009 at 12:42 PM, ma...@mendelu.cz wrote: > > Hell, I think that my question is related to > http://groups.google.cz/group/sage-support/browse_thread/thread/7cb33271dff797eb/878d6363dfad0d3f > > How can I write a function which takes determinant of matrix A below > and perfoms Laplace expansion along the last row, and shows the output > without evaluating 2x2 subdeterminants > > A=matrix([[1,2,3],[3,2,0],[1,0,1]]) > A Should the output be the string "1*det(matrix([[2,3],[2,0]]) - 0*det(matrix([[1,3],[3,0]])) + 1*det(matrix([[1,2],[3,2]])"? If so, Python has many string manipulation functions you can use but I'm not sure what you are asking. > > Is this possible in Sage? (I think than in maxima it is sufficient to > put ' before each determinant call) > > Many thanks > Robert > > > --~--~-~--~~~---~--~~ You received this message because you are subscribed to the Google Groups "sage-edu" group. To post to this group, send email to sage-edu@googlegroups.com To unsubscribe from this group, send email to sage-edu+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-edu?hl=en -~--~~~~--~~--~--~---
