Strange AttributeError
 
  
 
  
 
 
 
 
 
 
    
        
        asked 11 years ago  
 
 petropolis gravatar image  
 
 
 
 
    
        
        updated 2 years ago  
 
 tmonteil gravatar image  
 
 
 
 
 
In:
 
bool(-1/2*csc(3/8*pi + x)^2/cot(3/8*pi + x) + 1/cos(1/4*pi + 2*x) == 0)
 
Out:
 
AttributeError: 'sage.rings.complex_interval.ComplexIntervalFieldElement' object has no attribute 'sin'
 
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Comments
2
Thanks for reporting! This is a bug. Interestingly, this unrelated patch fixes the issue: http://trac.sagemath.org/ticket/15071
Eviatar Bach gravatar imageEviatar Bach (
    
        11 years ago
    )
Indeed:
sage: bool(-1/2*csc(3/8*pi + x)^2/cot(3/8*pi + x) + 1/cos(1/4*pi + 2*x) == 0)
False
tmonteil gravatar imagetmonteil (
    
        2 years ago
    )
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