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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 16:06] 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 ? |