#include <stdio.h>
#DEFINE suntetagmenes 3
double eswterikoginomeno(double dianusmata[][suntetagmenes])
{
int j;
double eswteriko=0;
for (j=0;j<suntetagmenes;j++)
{
eswteriko+=dianusmata[0][j]*dianusmata[1][j];
}
return(eswteriko);
}
double e3wterikoginomeno(double dianusmata[][suntetagmenes], int i)
{
double e3wteriko;
if (i==0)
{
e3wteriko=dianusmata[0][1]*dianusmata[1][2]-dianusmata[0][2]*dianusmata[1][1];
}
else if (i==1)
{
e3wteriko=dianusmata[0][2]*dianusmata[1][0]-dianusmata[0][0]*dianusmata[1][2];
}
else
{
e3wteriko=dianusmata[0][0]*dianusmata[1][1]-dianusmata[0][1]*dianusmata[1][0];
}
return(e3wteriko);
}
int main()
{
char x='m';
int count=0, i, j, pra3i, k=0;
double dianusmata[2][suntetagmenes]={0}, esw_gin, e3w_gin[suntetagmenes]={0};
while (x=='m')
{
for (i=0;i<=1;i++)
{
printf("Dwste 3 suntetagmenes gia to dianusma: ");
for (j=0;j<suntetagmenes;j++)
{
scanf("%lf",dianusmata[i][j]);
}
}
printf("Epile3te:\n1.Ypologismos eswterikou ginomenou\n2.Ypologismos e3wterikou ginomenou\n");
scanf("%d",&pra3i);
while ((pra3i!=1)&&(pra3i!=2))
{
if (count==1)
{
exit(-1);
}
printf("Dwsate la8os eisodo!\nEpile3te:\n1.Ypologismos eswterikou ginomenou\n2.Ypologismos e3wterikou ginomenou\n");
scanf("%d",&pra3i);
count=1;
}
esw_gin=eswterikoginomeno(dianusmata);
printf("To eswteriko ginomeno twn dianusmatwn pou dwsate einai %lf.",esw_gin);
if (esw_gin==0)
{
printf("Diladi ta dianusmata einai ka8eta meta3u tous.");
}
for (i=0;i<suntetagmenes;i++)
{
e3w_gin[i]=e3wterikoginomeno(dianusmata,i);
}
printf("To e3wteriko ginomeno twn dianusmatwn pou dwsate einai %lf.",e3w_gin[suntetagmenes]);
for (i=0;i<suntetagmenes;i++)
{
if (e3w_gin[i]==0)
{
k++;
}
}
if (k==3)
{
printf("Diladi ta dianusmata pou dwsate einai parallila meta3u tous.");
}
printf("Pliktrologiste m gia na epistrepsete sto menu i e gia na kanete exit!");
scanf("%c",&x);
while ((x!='m')&&(x!='e'))
{
printf("Dwsate la8os eisodo!\nPliktrologiste m gia na epistrepsete sto menu i e gia na kanete exit!");
scanf("%c",&x);
}
}
return(0);
}SEGMENTATION FAULT :( I DON'T KNOW WHAT TO DO... HELP ME PLEASE!
