In a previous post I was told to use RealField if I wanted very high degrees of accuracy.
I'm still now sure I'm using RealField right and would appreciate any help debugging my puzzle. sage: constant = 100*sqrt(pi/log(10.0)) sage: f(k) = 10^(-k^2/10000.0) sage: N = 10000 sage: RealField(100000)(sum(f(k) for k in range(-N, N))- constant) The infinite sum should agree with the constant to over 18000 digits. As I increase the value of N and the size of the mantissa I can't seem to ever get more than around 13 digits of agreement. (Context can be found at top of page 2 of this paper: http://arxiv.org/abs/math.GM/0409014/ ) Sincerely, Chris -- 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
