Hello; (First, excuse me for my bad english)

Please, I cannot run a script on Octave which nevertheless works correctly on Matlab. Apparently, it is a question of adapting the matrix form to Octave. Thanks in advance:

```
P = [];
for r = exp(−3.5:.25:0),
[x,y,z] = cylinder(r,16); P = [P [x (1,:); y (1,:)]];
end
P = unique([P ' ; 0 0], ' rows ' );
G = makeLayeredGrid(pebi(triangleGrid(P)), 5);
plotGrid(G, ' FaceColor ' ,[.8 .8 .8 ]); view(30,50), axis tight off
```

#
**My system**

- OS:
**Ubuntu 16.04** - Octave version:
**Version 6.2.0**