i++;
++i;
int x, i=3;
x=i++;
int x, i=3;
x=++i;
#include <stdio.h>
#include <math.h>
double epsilon=1.0E-10;
double kosinus_kuta(double x[], double y[]);
int main(void)
{
double a[3], b[3];
double cos_phi;
int i;
printf("Unesite vektor a.n");
for(i=0;i<3;++i){
printf("a[%d]= ",[B]i+1[/B]);
scanf(" %lf",&a[i]);
}
printf("Unesite vektor b.n");
for(i=0;i<3;++i){
printf("b[%d]= ",i+1);
scanf(" %lf",&b[i]);
}
cos_phi= kosinus_kuta(a, b);
if(fabs(cos_phi) == 0){
printf("Vektori su okomiti.n");
printf("Kosinus kuta = %fn", cos_phi);
}
else{
printf("Vektori nisu okomiti.n");
printf("Kosinus kuta = %fn", cos_phi);
}
return 0;
}
double norma(double x[]) {
int i;
double suma;
suma=0.0;
for(i=0;i<3;++i) suma = suma + x[i]*x[i];
return sqrt(suma);
}
double produkt(double x[], double y[]) {
int i;
double suma;
suma=0.0;
for(i=0;i<3;++i) suma = suma + x[i]*y[i];
return suma;
}
double kosinus_kuta(double x[], double y[]) {
double cos_phi;
cos_phi=produkt(x,y);
cos_phi=cos_phi/(norma(x)*norma(y));
return cos_phi;
}
#include <stdio.h>
int main(void)
{
int i, x;
i=1;
x=++i;
printf("%d n", x);
return 0;
}