It seems that doing this kind of thing over SR is not implemented. However, you can do something like this: R.<s>=QQ[] Mz = matrix(R,[[0,1],[1,0]]) Mx = matrix(R,[[1,0],[0,-1]]) M1 = matrix(R,[[1,0],[0,1]]) h = M1 + s*Mx
sage: h(s=1/2) [3/2 0] [ 0 1/2] Here h is a matrix with entries in R, and substitution works... On Fri, Nov 30, 2018 at 9:59 PM saad khalid <saad1...@gmail.com> wrote: > > Hi all, > > I'm not sure what is happening, but I defined some matrices: > Mz = matrix([[0,1],[1,0]]) > Mx = matrix([[1,0],[0,-1]]) > M1 = matrix([[1,0],[0,1]]) > > And then I tried defining a function where I multiply these matrices by some > variable and add them together: > > h(s) = M1 + s*Mx > h(.1) > However, when I try to compute this h(.1), the function doesn't plug in .1 in > for s in the function, and it returns: > > [ s + 1 0] > [ 0 -s + 1] > > > What exactly is happening? > > -- > You received this message because you are subscribed to the Google Groups > "sage-support" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to sage-support+unsubscr...@googlegroups.com. > To post to this group, send email to sage-support@googlegroups.com. > Visit this group at https://groups.google.com/group/sage-support. > For more options, visit https://groups.google.com/d/optout. -- You received this message because you are subscribed to the Google Groups "sage-support" group. To unsubscribe from this group and stop receiving emails from it, send an email to sage-support+unsubscr...@googlegroups.com. To post to this group, send email to sage-support@googlegroups.com. Visit this group at https://groups.google.com/group/sage-support. For more options, visit https://groups.google.com/d/optout.
