add numerical recipes library

lib/nr/k_and_r/recipes/shoot.c

@@ -0,0 +1,27 @@
+
+#include "nrutil.h"
+#define EPS 1.0e-6
+
+extern int nvar;
+extern float x1,x2;
+
+int kmax,kount;
+float *xp,**yp,dxsav;
+
+void shoot(n,v,f)
+float f[],v[];
+int n;
+{
+	void derivs(),load(),odeint(),rkqs(),score();
+	int nbad,nok;
+	float h1,hmin=0.0,*y;
+
+	y=vector(1,nvar);
+	kmax=0;
+	h1=(x2-x1)/100.0;
+	load(x1,v,y);
+	odeint(y,nvar,x1,x2,EPS,h1,hmin,&nok,&nbad,derivs,rkqs);
+	score(x2,y,f);
+	free_vector(y,1,nvar);
+}
+#undef EPS