Beispiel #1
0
unsigned int calc_data(unsigned int n_step, double h, double t[], double x[], double y[]){
    int i;
    //int n_step;
    //double h;
    
    //初期条件
    //t[0] = 0.0;
    //x[0] = 2.0;
    //y[0] = 0.0;
    
    //h = 0.002; //刻み幅
    //n_step = 7500;  //ステップ数
    
    //オイラー法の計算
    for(i = 0; i <= n_step; i++){
        y[i+1] = y[i] + h*yfunc(x[i], t[i]);
        x[i+1] = x[i] + h*xfunc(y[i], t[i]);
        t[i+1] = t[i] + h;
    }
    
    //計算結果の表示
    for(i = 0; i <= n_step; i += 50)
        //printf("%lf | %lf\n", t[i], x[i]);
    
    return n_step;
}
Beispiel #2
0
/*ARGSUSED1*/
void key (unsigned char key, int x, int y) {
    switch (key) {
    case 'b': bfunc(); break;
    case 'c': cfunc(); break;
    case 'l': lfunc(); break;
    case 't': tfunc(); break;
    case 'f': ffunc(); break;
    case 'n': nfunc(); break;
    case 'u': ufunc(); break;
    case 'U': Ufunc(); break;
    case 'p': pfunc(); break;
    case 'P': Pfunc(); break;
    case 'w': wfunc(); break;
    case 'x': xfunc(); break;
    case 'X': Xfunc(); break;
    case 'y': yfunc(); break;
    case '\033': exit(EXIT_SUCCESS); break;
    default: break;
    }
}