Hesam Sharghi

Dear Hil, Is it possibe to rewrite equations in the cartesian coordinates? Then, that case I do not have the polar coordinate.

Dear Hil, Thank you for your suggestion.

I wanted to use the Matcont to follow the solution for the driven pendulum (This is the example from Nonlinear Dynamics And Chaos: With Applications To Physics, Biology, Chemistry, And Engineering by Steven H. Strogatz, pp: 268, where comprehensive explanation can be found) phi'=y y'=I0-sin(phi)-alpha*y where coordinates are: phi and y parameters: I0,alpha The issue is that the natural phase-space for this problem is a cylinder because the phi coordinate is limited between [0, 2 pi]. So, I am wondering...

Dear hilmeijer, Thank you for your clearifications.

Hi, I tried Matlab 2018 b, and everything seems fine.

Whenever I try to use the 3d plot in matcont GUI, I get the following error. Index exceeds the number of array elements (4). Error in GUIPlotConf/syncRegionWithAxes (line 226) obj.configs{3}.region = newregion(5:6); Error in GUIPlotConf/fitAxis (line 393) obj.syncRegionWithAxes(); Error in GUIPlotConf>@(o,e)plotconf.fitAxis() (line 447) uimenu(mhandle , 'Label' , 'Fit Range' , 'Callback' , @(o,e) plotconf.fitAxis()); Error while evaluating Menu Callback. I used Matlab 2019b version. I reinsatll matcont,...

Whenever I try to use the 3d plot in matcont GUI, I get the following error. Index exceeds the number of array elements (4). Error in GUIPlotConf/syncRegionWithAxes (line 226) obj.configs{3}.region = newregion(5:6); Error in GUIPlotConf/fitAxis (line 393) obj.syncRegionWithAxes(); Error in GUIPlotConf>@(o,e)plotconf.fitAxis() (line 447) uimenu(mhandle , 'Label' , 'Fit Range' , 'Callback' , @(o,e) plotconf.fitAxis()); Error while evaluating Menu Callback. Index exceeds the number of array elements...