#include #include #include // versione con strutture typedef struct { double x; double v; double a; } particle; int main() { double t, w2; particle *p; double dt, dt2; int i, j, n; int N; // number of initial conditions FILE *dat, *gp; w2 = 1; dt = 0.1; dt2=dt*dt; n = 100; N=8; dat = fopen("Pendulum.dat", "w"); p = calloc(N, sizeof(particle)); // initial conditions for (j=0; j