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. 2018 Jan 19;4(1):eaao7005. doi: 10.1126/sciadv.aao7005

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Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC).

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Fig. 2 — (A) Structures with similar properties in the gamut are selected to study their commonalities. Our software embeds the structures using NLDR. (B) The auxetic families are plotted in the embedding space numbered from 1 to 5. Families with similar topologies are located closer in the embedding space. Three example structures from family 5 show the underlying connection between seemingly distinct structures through gradual morphing of shape.