Program Persamaan Kuadrat dalam Bahasa C++
#include <iostream> #include <math.h> using namespace std; int main() { int a, b, c; float D, x, x1, x2; cout<<"Nilai a : ";cin>>a; if(a==0) cout<<"bukan persamaan kuadrat"; else{ cout<<"nilai b : ";cin>>b; cout<<"nilai c : ";cin>>c; D=(b*b)-(4*a*c); if(D<0) cout<<"akar-akarnya imajiner"<<endl; else if (D==0){ x=(-b/2)*a; cout<<"akar-akarnya kembar : "<<x; } else{ cout<<"akar-akarnya berbeda"; x1=(-b+(sqrt(D)))/2*a; x2=(-b-(sqrt(D)))/2*a; cout<<"x1 : "<<x1<<endl; cout<<"x2 : "<<x2; } } return 0; }