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programming:transform_spectral_coeff_to_physical_data_points

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programming:transform_spectral_coeff_to_physical_data_points [2010/08/28 16:04]
emmanuel
programming:transform_spectral_coeff_to_physical_data_points [2010/08/28 16:08]
emmanuel
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 We can determine the physical values from the spectral coefficients by evaluating the expansion sum (eqn 20 in the user's manual.) ​ We can determine the physical values from the spectral coefficients by evaluating the expansion sum (eqn 20 in the user's manual.) ​
-I wanted to compared the physical values computed by this sum with the values returned by the method u.makephysical(). This method use FFTW. +I wanted to compared the physical values computed by this sum with the values returned by the method u.makephysical(). This method use the FFTW algorithm and  
-So I was just wondering if there is any difference. The fact is that, I do not obtained the same results.+I was expecting no difference. The fact is that, I do not obtained the same results.
    
 I have attached part of the code I am using. Do you think that something is incorrect ? I have attached part of the code I am using. Do you think that something is incorrect ?
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 Example of results displayed : Example of results displayed :
-  0.00258953 ​     // u computing Fourier series+  0.00258953 ​     // u from expansion sum
   0.00604268 ​     // return of u.makePhysical (FFTW)   0.00604268 ​     // return of u.makePhysical (FFTW)
  
programming/transform_spectral_coeff_to_physical_data_points.txt · Last modified: 2010/08/28 16:08 by emmanuel