reducing Kmin to allow direct comparison with class
#define K_PIVOT 0.05
#define K_MAX_SPLINE 500.
#define K_MAX 1e3
-#define K_MIN 1e-5
+#define K_MIN 1e-6
#define K_MAX_INT (1e3/1.1) //minimum integration range
#define K_MIN_INT (1e-5*1.1) //maximum integration range
#define N_K 1000
