View difference between Paste ID: f8rmGsqN and 7siZXKig

 double media (double *p, int elementos){
 
     int i;
     double sumatorio=0.0, media=0.0;
 
     for (i = 0; i < elementos; i++){
         sumatorio = sumatorio + *p;
         p++;
     }
 
     media = sumatorio / elementos;
 
     return(media);
 }
 
 double varianza(double *p, int n){
 	int i;
 	double med=0, var=0;
 
  	med=media(*p,n);
 	for (i = 0; i < n; i++){
-        	var = var + (*p - med)^(*p - med);
+        	var = var + (*p - med)*(*p - med);
         	p++;
     }
 	var = var/(n-1);
 	return (var)
 }