Menghitung Persamaan Kuadrat
#include
#include
#include
void main()
{
char key;
double a,b,c,D,x1,x2;
do
{
clrscr();
cout<<"Program untuk menghitung nilai X pada Persamaan ax^2+bx+c=0\n";
cout<<"Masukkan a: ";cin>>a;
cout<<"Masukkan b: ";cin>>b;
cout<<"Masukkan c: ";cin>>c;
cout<<"\n";
cout<<"Persamaan=>"<<<"x^2"<<"+"<<<"x"<<"+"<<<"=0"<<"\n\n";
{
D=((b*b)-(4*a*c));
}
cout<<"Determinannya="<<<"\n\n";
if(D<0)
{
cout<<"Akar-akar imajiner\n";
cout<<"===================\n";
D=(-1*D);
x1=(-b/(2*a))-(sqrt(D))/(2*a);
x2=(-b/(2*a))+(sqrt(D))/(2*a);
cout<<"x1="<<<"\n";
cout<<"x2="<<<"\n";
}
else if(D>0)
{
cout<<"Akar-akar Real\n";
cout<<"===================\n";
x1=(b+sqrt(D))/(2*a);
x2=(-b-sqrt(D))/(2*a);
cout<<"x1="<<<"\n";
cout<<"x2="<<<"\n";
}
else
{
cout<<"Akar-akar Kembar\n";
cout<<"===================\n";
x1=(-b+sqrt(D))/(2*a);
x2=(-b-sqrt(D))/(2*a);
cout<<"x1="<<<"\n";
cout<<"x2="<<<"\n";
}
cout<<"\nIngin mengulang..?[Y/T]:";cin>>key;
}
while(key=='Y'||key=='y');
}
#include
#include
void main()
{
char key;
double a,b,c,D,x1,x2;
do
{
clrscr();
cout<<"Program untuk menghitung nilai X pada Persamaan ax^2+bx+c=0\n";
cout<<"Masukkan a: ";cin>>a;
cout<<"Masukkan b: ";cin>>b;
cout<<"Masukkan c: ";cin>>c;
cout<<"\n";
cout<<"Persamaan=>"<<<"x^2"<<"+"<<<"x"<<"+"<
{
D=((b*b)-(4*a*c));
}
cout<<"Determinannya="<
if(D<0)
{
cout<<"Akar-akar imajiner\n";
cout<<"===================\n";
D=(-1*D);
x1=(-b/(2*a))-(sqrt(D))/(2*a);
x2=(-b/(2*a))+(sqrt(D))/(2*a);
cout<<"x1="<
cout<<"x2="<
}
else if(D>0)
{
cout<<"Akar-akar Real\n";
cout<<"===================\n";
x1=(b+sqrt(D))/(2*a);
x2=(-b-sqrt(D))/(2*a);
cout<<"x1="<
cout<<"x2="<
}
else
{
cout<<"Akar-akar Kembar\n";
cout<<"===================\n";
x1=(-b+sqrt(D))/(2*a);
x2=(-b-sqrt(D))/(2*a);
cout<<"x1="<
cout<<"x2="<
}
cout<<"\nIngin mengulang..?[Y/T]:";cin>>key;
}
while(key=='Y'||key=='y');
}
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