07/11/27 16:24:47
>>307
#include <stdio.h>
#define TRI(a) ((a)*(a)*1.7320508/4.0)
int main( ){ return printf( "%lf\n", TRI(5)); }
07/11/27 16:24:47
>>307
#include <stdio.h>
#define TRI(a) ((a)*(a)*1.7320508/4.0)
int main( ){ return printf( "%lf\n", TRI(5)); }