Fixed the equation for energy and area a0

Samo Penic

2018-05-16 04694fe065b8cab52fa878a5fc23e7159f2e548c

 src/vertex.c

@@ -1,3 +1,4 @@
/* vim: set ts=4 sts=4 sw=4 noet : */
#include<stdlib.h>
#include<math.h>
#include<string.h>