Numerically compare values
 
  
 
  
 
 
 
 
 
 
    
        
        asked 8 years ago  
 
 bmoi gravatar image  
 
 
 
 
 
I was wondering whether there is a way to numerically compare values. I don't want to use == due to the limited precision of floating point arithmetic.  There are some possible solutions, for example here:
 
http: // floating-point-gui.de/errors/comparison/
 
My question is, is something like this already implemented in sage?
 
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Comments
Your question is quite too vague: What are the values you are trying to compare? How were they defined? In Sage, there are a lot of solutions for numerical values: multiple-precision floating-point arithmetic (using mpfr), interval arithmetic, ball arithmetic, exact representation for algebraic numbers, etc.
B r u n o gravatar imageB r u n o (
    
        8 years ago
    )
@bmoi: please give an example of your use case, this will help others give relevant answers.
slelievre gravatar imageslelievre (
    
        8 years ago
    )
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