View3D:

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   View a plane of a 3D plot or standard cartesian view.
   The default view is view(3).

   View3D is the same as View3D('none')
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   Forms:
   View3D( 'xy' )
   View3D( 'yz' )
   View3D( 'xz' )
   View3D( 'cart' )
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   ------
   Inputs
   ------
   type     (:)    String indicating view type.

   -------
   Outputs
   -------
   none

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