Kamil Ondrousek / Mbed 2 deprecated 2D-VanDerPol

Van der Pol limit cycle - 2D nonlinear attractor

Dependencies:   mbed

Diff: main.cpp

Revision:
0:964911ed238a
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Feb 09 22:35:32 2011 +0000
@@ -0,0 +1,41 @@
+#include "TFT_4DGL.h"
+
+TFT_4DGL lcd(p9,p10,p11);
+
+int main() {
+
+     int   xp,yp;
+     
+     int n = WHITE;
+   
+     float x,y,xn,yn;
+
+     float dt = 0.314;
+  
+     float x1 = 0.01;
+     float y1 = 0.01;
+     
+     x = x1;
+     y = y1;
+
+    while(1)
+    
+    {
+    
+        xn = y1;
+        yn = (1-(x1*x1))*y1-x1;
+        
+        x = x+xn*dt;
+        y = y+yn*dt;
+
+        xp = (int)floor(x*50);
+        yp = (int)floor(y*35);
+
+        lcd.pixel(120+yp,160+xp,n);
+     
+        x1 = x;
+        y1 = y;
+        
+    }
+ 
+}
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