Plot window not responding

The problem is likely to be the graphics toolkit which your installation of Octave is using.

To check this, type graphics_toolkit in the Octave command line.

If the response is fltk and your plot window is freezing, then switch the default toolkit to gnuplot: graphics_toolkit('gnuplot')

Test that the problem is fixed: x=1:10; y=x.^2; plot(x,y)

Make the change permanent in your octave.rc file, located in your Octave installation directory:

    On Windows:  \Octave\share\octave\site\m\startup\octaverc
    On Linux:     ~/.octaverc


Still not working?

  • If response is qt, try either fltk or gnuplot (one may be faster than the other).

  • If the above does not work, you may need to install/re-install gnuplot. (thanks to lukas and saurabh for this edge case).

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