Linear cavity summation. An example showing the summation strategy for a metabolite with 8 fluxes. Once all elements of the table are computed (6 convolutions are needed), one needs only 3 more convolutions to compute each one of the 8 cavity messages. In the figure the table elements that are needed to compute ⊗j ≠ 5h
= (h1 ⊗ h2 ⊗ h3 ⊗ h4)⊗ (h7 ⊗ h8) ⊗ h6 are colored in blue.