None

None
is a setting used for certain options.

ExamplesExamplesopen allclose all

Basic Examples (4)Basic Examples (4)

For ContourPlot, use None to only show the contour lines:

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Out[1]=

Plot only mesh lines:

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Out[1]=

Use None to indicate holes or no content for mesh regions:

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Out[1]=

Use None to indicate no vertex labels should be used:

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Out[1]//TreeForm=
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