I'm using Octave 5.2 on Ubuntu 20.04. Copypasting the example
[x, y] = meshgrid (-1.5:0.2:2, -1:0.2:2);
u = - x / 4 - y;
v = x - y / 4;
streamline (x, y, u, v, 1.7, 1.5);
in a m-file and launching the script, gives
warning: the 'streamline' function is not yet implemented in Octave
Please read <https://www.octave.org/missing.html> to learn how you can
contribute missing functionality.
error: 'streamline' undefined near line 4 column 1
error: called from
quiverexample at line 4 column 1
yet I believe it should be present in the 5.2 version (streamline was implemented on the 23/11/2019 and the 5.2 version was built on 31/01/2020). Should I build Octave from source or there are other ways to fix this?