# Van der Pol oscillator_01

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globals [ mylist-x mylist-y X Y dt ] to setup clear-globals clear-ticks clear-patches clear-all-plots ask patches with [ pxcor = 0 ] [ set pcolor white ] ask patches with [ pycor = 0 ] [ set pcolor white ] ask patches with [ pxcor = 1 ] [ set pcolor white ] ask patches with [ pycor = 1 ] [ set pcolor white ] set mylist-x list 0 (X-slider) set mylist-y list 0 (Y-slider) system-dynamics-setup system-dynamics-do-plot end to system-dynamics-setup reset-ticks set dt 0.001 set X X-slider set Y Y-slider end to go system-dynamics-go system-dynamics-do-plot set mylist-x lput result-x mylist-x set mylist-y lput result-y mylist-y crt 1 [ set color phase-plot-color set xcor (last mylist-x * 40) set ycor (last mylist-y * 40) set size 0.7 set shape "circle" ] end to system-dynamics-go let local-m m let local-inflow inflow let local-inflow1 inflow1 let new-X ( X + local-inflow1 ) let new-Y ( Y + local-inflow ) set X new-X set Y new-Y tick-advance dt end to-report inflow report ( m * ( 1 - X * X ) * Y - X ) * dt end to-report inflow1 report ( m * Y ) * dt end to system-dynamics-do-plot if plot-pen-exists? "X" [ set-current-plot-pen "X" plotxy ticks X ] if plot-pen-exists? "Y" [ set-current-plot-pen "Y" plotxy ticks Y ] end to-report result-x report X end to-report result-y report Y end to clear-picture ca end

There is only one version of this model, created over 1 year ago by Victor Iapascurta.

## Attached files

File | Type | Description | Last updated | |
---|---|---|---|---|

Van der Pol oscillator_01.png | preview | Preview for 'Van der Pol oscillator_01' | over 1 year ago, by Victor Iapascurta | Download |

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