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                 chintanshah 
                 
                
                Germany 
                3 Posts  | 
                
                  
                    
                      
                       Posted - 02/05/2015 :  10:00:57 AM
                        
                        
                        
                        
                        
                      
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                       Hello, I am building a new cosine fitting function. i.e. A-B*cos((2*pi*(x+x0))/180). After fitting the data points with this function, I can get amplitude B and the offset A. Now to the post fitting, I want to have simple mathematical calculations on the derived parameters. i.e. p_DR=((B/(M*A))-(p_RR*f_RR))/(1-f_RR), where M, p_RR and f_RR are the constants, but it has an error. At this point I do not know How can I include the error of M, p_RR and f_RR in the post processing of the function. Please let me know how to include errors to get final value of p_DR?
  
  
   Thank you very much. Regards,
  chintan | 
                     
                   
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                 lkb0221 
                 
                
                China 
                497 Posts  | 
                
                  
                    
                      
                       Posted - 02/05/2015 :  10:04:52 AM
                        
                        
                        
                        
                        
                      
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                      |  Move your M into parameter part and fix it. | 
                     
                    
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                 chintanshah 
                 
                
                Germany 
                3 Posts  | 
                
                  
                    
                      
                       Posted - 02/05/2015 :  10:16:09 AM
                        
                        
                        
                        
                        
                      
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                       quote: Originally posted by lkb0221
  Move your M into parameter part and fix it.
 
  
  Thank you lkb0221. Fixing the value is the same as the constant. The value of M is for an example 0.4+/-0.02, the same for the values of p_RR and f_RR. The question is, How to take the error of 0.02 of M and others, as error propagation to derived parameter?
  chintan | 
                     
                    
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                 lkb0221 
                 
                
                China 
                497 Posts  | 
                
                  
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                 chintanshah 
                 
                
                Germany 
                3 Posts  | 
                
                  
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