add numerical recipes library

lib/nr/ansi/recipes/copy.c

@@ -0,0 +1,9 @@
+
+void copy(double **aout, double **ain, int n)
+{
+	int i,j;
+	for (i=1;i<=n;i++)
+		for (j=1;j<=n;j++)
+			aout[j][i]=ain[j][i];
+
+}