On 2/26/12 1:37 PM, Albert wrote:
Hi Sage-Team,I have an idea, what might be useful for Sage. There is the command submatrix, which gets a starting column and a starting row and the number of columns and rows that you want to have for that submatrix after the starting point. Wouldn't it be more useful, if you could decide which rows and columns you want to have exactly (like it is implemented for example in Maple). I mean for example: A = matrix(QQ,[[1,2,3],[4,5,6],[7,8,9]]) A.submatrix([1,3],[1,3]) ==> [1,3] [7,9] That means, you give a list for the columns and a list for the rows you want to have in the submatrix. That takes away in certain circumstances a lot more work from the user. And it is not very complicated to implement. Tell me what you think,
See http://www.sagemath.org/doc/reference/sage/matrix/docs.html#indexing Thanks, Jason -- To post to this group, send email to sage-support@googlegroups.com To unsubscribe from this group, send email to sage-support+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/sage-support URL: http://www.sagemath.org
