plz give the solution in language python

Thanks

Multiplying the ith term in the partial sum sin((21 + 1)2) 2i +1 i=0 (21+1) by the Lanczos sigma factor sinc gives a new function lanczos partial_sum(x, n) = sinc (212 (2i +1) sin(21 +1)x) 4n 2i +1 i=0 On the same axes, plot lanczos partial_sum(X, 100), square_wave(x), and the lines y = +. You will see that the Gibbs phenomenon is reduced, but not eliminated