vector<float> vectorMath::cross(vector<float> a, vector<float> b)
{
//cross product, axb
/*
|a2 a3| i - |a1 a3| j + |a1 a2|k
|b2 b3| |b1 b3| |b1 b2|
*/
float i = descriminant(a[1], a[2], b[1], b[2]);
float j = descriminant(a[0], a[2], b[0], b[2]);
float k = descriminant(a[0], a[1], b[0], b[1]);
vector<float> result;
result.push_back(i);
result.push_back(-j);
result.push_back(k);
return result;
}
void polycalc(){
int a = 0;
int b = 0;
int c = 0;
int flag = 1;
while(flag){
printf("calcul de racine pour 'ax² + bx + c'\n");
printf("a = ?\n");
scanf("%d",&a);
printf("b = ?\n");
scanf("%d",&b);
printf("c = ?\n");
scanf("%d",&c);
test(a,b,descriminant(a,b,c));
printf("stop ? use 0\n");
scanf("%d",&flag);
fflush(stdin);
system("cls");
}
}
