#8433: plot3d for tachyon hangs
----------------------------+-----------------------------------------------
   Reporter:  robert.marik  |       Owner:  AlexGhitza
       Type:  defect        |      Status:  new       
   Priority:  major         |   Milestone:            
  Component:  algebra       |    Keywords:            
     Author:                |    Upstream:  N/A       
   Reviewer:                |      Merged:            
Work_issues:                |  
----------------------------+-----------------------------------------------
 The following plot command fails (tachyon gets all CPU usage and no
 picture is shown)
 {{{
 y=var('y')
 B=plot3d(sqrt(sin(x)*sin(y)),(x,-2*pi,2*pi),(y,-2*pi,2*pi),viewer='tachyon')
 B.show()
 }}}
 This works fine
 {{{
 y=var('y')
 B=plot3d(sqrt(sin(x)*sin(y)),(x,0,2),(y,0,2), viewer='tachyon')
 B.show()
 }}}
 and this does not work
 {{{
 y=var('y')
 B=plot3d(sqrt(sin(x)*sin(y)),(x,-2,2),(y,-2,2), viewer='tachyon')
 B.show()
 }}}
 Related trac is #8424, but the problem seems to be independent.

-- 
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8433>
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