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[[Image:Euclidean Voronoi diagram.svg|thumb|20 points and their Voronoi cells (larger version [[#Illustration|below]])]]
The '''Natural Element Method''' (NEM) <ref>{{cite journal|url=https://onlinelibrary.wiley.com/doi/abs/10.1002/%28SICI%291097-0207%2819981115%2943%3A5%3C839%3A%3AAID-NME423%3E3.0.CO%3B2-R|title=The natural element method in solid mechanics|first1=N.|last1=Sukumar|first2=B.|last2=Moran|first3=T.|last3=Belytschko|date=21 June 1998|publisher=|journal=International Journal for Numerical Methods in Engineering|volume=43|issue=5|pages=839–887|accessdate=21 June 2019|via=Wiley Online Library|doi=10.1002/(SICI)1097-0207(19981115)43:53.0.CO;2-R}}</ref><ref>{{cite journal| title=A new extension of the natural element method for non‐convex and discontinuous problems: the constrained natural element method (C‐NEM)| author1=J. Yvonnet| author2=D. Ryckelynck| author3=P. Lorong| author4=F. Chinesta| publisher=International Journal for Numerical Methods in Engineering| pages=1451-1474}}</ref><ref>{{cite journal|url=https://www.researchgate.net/publication/332678382_Large_deformation_analysis_of_elastic_bodies_by_nonlinear_Petrov-Galerkin_natural_element_method|title=Large deformation analysis of elastic bodies by nonlinear Petrov–Galerkin natural element method}}</ref> is a [[meshless method]] to solve [[partial differential equation]], where the ''elements'' don't have a predefined shape like the [[Finite Element Method]], but depend on the geometry.
A [[Voronoi diagram]] partitioning the space is used to create each of these elements.
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