2 #include <gsl/gsl_rng.h>
3 #include <gsl/gsl_randist.h>
9 double x = 0, y = 0, dx, dy;
11 const gsl_rng_type * T;
16 r = gsl_rng_alloc (T);
18 printf ("%g %g\n", x, y);
20 for (i = 0; i < 10; i++)
22 gsl_ran_dir_2d (r, &dx, &dy);
24 printf ("%g %g\n", x, y);