As in Fig. 3, but for the bispectrum. The triangular configurations in the top and bottom right panels satisfy the constraint k₁ ≥ k₂ ≥ k₃ and are ordered so that first k₃ increases (at fixed k₁ and k₂), then k₂ (at fixed k₁), and finally k₁. For reference, in the top left panel, the ratio R_B(k₁, k₂, k₃) is also plotted, computed according to the approximated method introduced by Gil-Marín et al. (2015; green circles).