Hi, What I want to do is to express some expression in function of some vectors and matrix. Exactly what I'am trying is to express third iteration of CG algorithm in function of first iteration so that third iteration rely only on the variables(vectors and scalars) from the first iteration (back substitution)...Doing this by hand you get very big formulas so my intention is to use SAGE to try to make more simple and compact by expand or simplify commands but that only function in case of normal variables. Here I have scalars, vectors, matrices so I have scalar product, product scalar-vector, matrix-vector multiplication. What I'am saying that in case of vectors and matrix I can't work at symbolic level. The program already have to know the content of matrix and vector and he will try for example to give me result for A*X and he will not leave in symbolic format. I want to work on undefined matrices and vectors. I hope you can understand me...
Thanks, Branimir -- 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
