ContourPlot3D gives confusing plot

Asked Feb 21 '22 at 05:24

Active Jan 13 '23 at 03:09

Viewed 196 times

Bug introduced after 9.0, persisting through 13.2.

ContourPlot3D [z == Sqrt@(x + y), {x, -5, 5}, {y, -5, 5}, {z, - 5, 5},
AxesOrigin->{0,0,0},AxesLabel->{x,y,z}]

z < 0, there is also some graph?

ContourPlot gives a true plot.

ContourPlot[y==Sqrt[x],{x,-5,5},{y,-5,5}]

edited Jan 13 '23 at 03:09

bmf

asked Feb 21 '22 at 05:24

AsukaMinato

As a workaround, add RegionFunction -> (#3 >= 0 &), RegionBoundaryStyle -> None – Bob Hanlon Feb 21 '22 at 06:03
That Sqrt gives negative values for arguments near zero in the 3D plot looks like a bug to me. Please report it to support@wofram.com. – Daniel Huber Feb 21 '22 at 11:05
Version 9.0.1 is not influenced. – xzczd Nov 12 '22 at 02:43

0 Answers0