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. 2018 Feb 16;8(2):20170052. doi: 10.1098/rsfs.2017.0052

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© 2018 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

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Figure 3. — Branch scaling parameters for idealized symmetric trees. The branching ratio n is the number of daughter branches per parent branch (n = 2 in this example); the branch radius scaling parameter a = <r_k₊₁/r_k>, the ratio of the radii of daughter branches to those of their parent branches at each branch segment, averaged across a particular branching order; the branch length scaling parameter b = <r_k₊₁/r_k>, the ratio of the lengths of daughter branches to those of their parent branches at each branch segment, averaged across a particular branching order. (Online version in colour.)