Write the Matrix2 by using Matrix1

[quest]

Also there fail on my part, so sorry. I forgot to mention that subs is returning a new matrix. so in order to have it saved in your old variable you would need to do

rho_matrix = rho_matrix.subs(cur_symbol, m)

There is no special print function for that, the normal one will do fine :)

hmm, it seems that subs method is not working. I double checked and printed. m matrix is coming ok. but when we write

rho_matrix = rho_matrix.subs(cur_symbol, m)

rho_matrix is still rho00 and not the [1,0,0,0....]