#1173: implement numerical evaluation of erf at complex arguments via mpmath
algorithm
---------------------------------------------+------------------------------
   Reporter:  was                            |          Owner:  was         
       Type:  enhancement                    |         Status:  needs_work  
   Priority:  major                          |      Milestone:  sage-5.0    
  Component:  calculus                       |       Keywords:  sd35.5      
Work_issues:                                 |       Upstream:  N/A         
   Reviewer:  Burcin Erocal, Benjamin Jones  |         Author:  D. S. McNeil
     Merged:                                 |   Dependencies:  #11513      
---------------------------------------------+------------------------------
Description changed by benjaminfjones:

Old description:

> When implemented, this would work:
> {{{
> sage: a = sqrt(pi)*I*erf(2*I)/2
> sage: CC(a)
> ...
> }}}
>
> ---------------------------------------
>
> Release manager, apply to the Sage library:
>  1. patch
> [http://trac.sagemath.org/sage_trac/attachment/ticket/11513/trac_11513-is_numerically_zero.patch
> trac_11513-is_numerically_zero.patch] at #11513
>  2. patch
> [http://trac.sagemath.org/sage_trac/attachment/ticket/1173/trac_1173_complex_erf_v3.patch
> trac_1173_complex_erf_v3.patch]  attached to this ticket.

New description:

 When implemented, this would work:
 {{{
 sage: erf(2.0, algorithm='mpmath')
 ...
 }}}

 ---------------------------------------

 Release manager, apply to the Sage library:
  1. patch
 
[http://trac.sagemath.org/sage_trac/attachment/ticket/11513/trac_11513-is_numerically_zero.patch
 trac_11513-is_numerically_zero.patch] at #11513
  2. patch
 
[http://trac.sagemath.org/sage_trac/attachment/ticket/1173/trac_1173_complex_erf_v3.patch
 trac_1173_complex_erf_v3.patch]  attached to this ticket.

--

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/1173#comment:51>
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 post to this group, send email to [email protected].
To unsubscribe from this group, send email to 
[email protected].
For more options, visit this group at 
http://groups.google.com/group/sage-trac?hl=en.

Reply via email to