I appreciated your previous responses on this subject. I would now like to apply these modular symbols to elliptic curves. In particular, I want to compute the algebraic value of a twisted L- function by applying Birch's theorem in [MTT]
That is L(E,1,chi)^{alg} = sum_{a mod,m) chi(a)*{a,m}/Omega For this to work, the modular symbols need to translate to real numbers and I don't see the appropriate functions to perform this. Best Wishes, Jack Fearnley -- 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