To include external graphics, e.g., a graphic called ‘my_graphic.png’ at the same location as the published Octave script, use the following syntax.
Alternatively, you can write the full path to the graphic.
## # # <<my_graphic.png>> # # <</full/path/to/my_graphic.png>> # # <<../relative/path/to/my_graphic.png>> #
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https://octave.org/doc/interpreter/Including-Graphics.html