Editing Isosurface (section)

{{short description|Surface representing points of constant value within a volume}}
<!-- Deleted image removed: [[Image:Isosurface on molecule.jpg|thumb|right|Zirconocene with an isosurface showing areas of the molecule susceptible to electrophilic attack.]] -->

An '''isosurface''' is a three-dimensional analog of an [[Contour line|isoline]].  It is a [[Surface (mathematics)|surface]] that represents points of a constant value (e.g. [[pressure]], [[temperature]], [[velocity]], [[density]]) within a [[volume]] of space; in other words, it is a [[level set]] of a continuous [[Function (mathematics)|function]] whose [[Domain of a function|domain]] is [[3-space]]. 

The term ''isoline'' is also sometimes used for domains of more than 3 dimensions.<ref>{{Citation|title=Hamilton–Jacobi equation|date=2020-12-06|url=https://en.wikipedia.org/w/index.php?title=Hamilton%E2%80%93Jacobi_equation&oldid=992629363|work=Wikipedia|language=en|access-date=2020-12-14}}</ref> 

[[File:CFD simulation showing vorticity isosurfaces behind propeller.png|thumb|right|Isosurface of [[vorticity]] trailed from a propeller blade. Note that this is an isosurface plotted with a colormapped slice.]]