#6648: adds riemann mapping and complex interpolation
--------------------------------------------------------------+-------------
   Reporter:  evanandel                                       |       Owner:  
evanandel      
       Type:  enhancement                                     |      Status:  
positive_review
   Priority:  major                                           |   Milestone:  
sage-4.4       
  Component:  calculus                                        |    Keywords:  
complex        
     Author:  Ethan Van Andel                                 |    Upstream:  
N/A            
   Reviewer:  David Joyner, Martin Albrecht, Minh Van Nguyen  |      Merged:    
             
Work_issues:                                                  |  
--------------------------------------------------------------+-------------

Comment(by jason):

 I'm excited to explore this functionality and show it to a fellow faculty
 member who does projects with students in complex analysis.

 Things could probably be sped up quite a bit if the class used
 fast_callable to "compile" the functions.  For example:

 {{{
 sage: ff=fast_callable(e^(I*t),domain=CDF,vars=['t'])
 sage: gg=fast_callable(I*e^(I*t),domain=CDF,vars=['t'])
 sage: %time m = Riemann_Map([ff], [gg], 0, 1000)
 CPU times: user 2.44 s, sys: 0.12 s, total: 2.56 s
 Wall time: 2.57 s
 sage: %time m = Riemann_Map([lambda t: e^(I*t)], [lambda t: I*e^(I*t)], 0,
 1000)
 CPU times: user 21.25 s, sys: 0.25 s, total: 21.50 s
 Wall time: 23.13 s
 }}}

 Notice that the fast_callable version is an order of magnitude faster.

 I don't think this patch ought to be delayed for this, but it would be a
 good additional ticket to speed up this functionality quite a bit by using
 fast_callable.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6648#comment:36>
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