is a setting used for certain options.
None
is a setting used for certain options.
Examples
Basic Examples (4)
For ContourPlot , use None to only show the contour lines:
Plot only mesh lines:
Use None to indicate holes or no content for mesh regions:
Use None to indicate no vertex labels should be used:
Related Guides
Related Links
History
Introduced in 1988 (1.0)
Text
Wolfram Research (1988), None, Wolfram Language function, https://reference.wolfram.com/language/ref/None.html.
CMS
Wolfram Language. 1988. "None." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/None.html.
APA
Wolfram Language. (1988). None. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/None.html
BibTeX
@misc{reference.wolfram_2025_none, author="Wolfram Research", title="{None}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/None.html}", note=[Accessed: 03-January-2026]}
BibLaTeX
@online{reference.wolfram_2025_none, organization={Wolfram Research}, title={None}, year={1988}, url={https://reference.wolfram.com/language/ref/None.html}, note=[Accessed: 03-January-2026]}