[Discuss-gnuradio] Rounding Error between Python and C++ Blackmanharris Window

Dear GNU Radio,

This is most likely a shortcoming of how python handles significant digits, but I wanted to point out that creating a Blackmanharris window in Python and C++ result in different results.

In Python:
window = fft.blackmanharris(1024)

In c++:
const std::vector< float >  window = gr::filter::firdes::window(gr::filter::firdes::WIN_BLACKMAN_HARRIS, 1024, NULL);

I have attached an image of two plots. The first plot is of the two windows on top of each other (green and blue), and the second is of their difference:
         differences = python_values - cpp_values;

I was wondering why my c++ and python application were getting different results, and I have found the cause.

--
    Sincerely,
Tommy Tracy II
        UVA