#16916: cuspform_lseries() method for a new form has precision issues
-----------------------------+----------------------------
   Reporter:  tornaria       |            Owner:
       Type:  defect         |           Status:  new
   Priority:  major          |        Milestone:  sage-6.4
  Component:  modular forms  |         Keywords:  lseries
  Merged in:                 |          Authors:  tornaria
  Reviewers:                 |  Report Upstream:  N/A
Work issues:                 |           Branch:
     Commit:                 |     Dependencies:
   Stopgaps:                 |
-----------------------------+----------------------------
 {{{
 sage: f = Newforms(67, names='a')[0]
 sage: L = f.cuspform_lseries()
 ...
 RuntimeError: Unable to create L-series, due to precision or other limits
 in PARI.
 }}}

 This is because the field {{{prec}}} is used both for the numerical
 precision ''and'' for the number of coefficients computed.

 Since the L-functions class has a {{{num_coeffs()}}} method, the proper
 thing is to use that to know how many coefficients to compute.

--
Ticket URL: <http://trac.sagemath.org/ticket/16916>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica, 
and MATLAB

-- 
You received this message because you are subscribed to the Google Groups 
"sage-trac" group.
To unsubscribe from this group and stop receiving emails from it, send an email 
to [email protected].
To post to this group, send email to [email protected].
Visit this group at http://groups.google.com/group/sage-trac.
For more options, visit https://groups.google.com/d/optout.

Reply via email to