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Fig. 3
Relative error on the power spectrum in mode-mode space C(l,n). We compare the original formulation of spherical Fourier-Bessel decomposition with the reverse formulation, testing nside = 512,1024 (rows) and R = 1000,2000 (columns). Only a few zones (white spots) are outside the range [−0.3%, + 0.3%].
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