I don't often use 3D graphics, but when I run implicitplot3d() I get
a file permissions error (on ubuntu 20.04):
# example from the docstring
sage: var('x,y,z')
(x, y, z)
sage: implicit_plot3d(x^2+y^2+z^2==4, (x,-3,3), (y,-3,3), (z,-3,3))
Launched html viewer for Graphics3d Object
Over in my browser (chromium-browser) I see the error message "Access
to the file was deniedThe file at
file:///home/john/.sage/temp/john-Latitude-E5470/2250012/tmp_x5e1jfy0.html
is not readable. It may have been removed, moved or file permissions
may be preventing access." I changed the permissions on .sage and
everything under it to a+rx and reloaded, with no change. I deleted
all of ~/.sage and restarted sage and reran the commands, but the same
happened.
I can view other html files in my home directory using the browser.
What should I do?
John
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