Kamil Ondrousek / Mbed 2 deprecated DuffingOsc

Duffing oscillator

Dependencies:   mbed

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Show/hide line numbers main.cpp Source File

main.cpp

00001 #include "TFT_4DGL.h"
00002 
00003 TFT_4DGL lcd(p9,p10,p11);
00004 
00005 int main() {
00006 
00007     double x1,y1,z1,x,y,z,dt;
00008     int   xp,yp,sl,sk;
00009    
00010     float a = -0.1;
00011     float b = 0.01;
00012     float c = 0.2;
00013 
00014     x1 = 0;
00015     y1 = 0;
00016     z1 = 0;
00017 
00018     sl = 0;
00019     sk = 0;
00020     
00021     dt = 0.007;
00022 
00023     while(1)
00024     
00025     {
00026     
00027         x = x1+(y1)*dt;
00028         y = y1+(-b*y1+x1-pow(x1,3)+a*cos(z1))*dt;
00029         z = z1+(c)*dt;
00030 
00031         yp = (int)floor(y*90);
00032         xp = (int)floor(x*90);
00033 
00034         lcd.pixel(120+yp,160+xp,WHITE);
00035 
00036         sk++;
00037       
00038         x1 = x;
00039         y1 = y;
00040         z1 = z;
00041 
00042     }
00043  
00044 }
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