Algebra: Solve Quadratic Equations

The code has been modified slightly and now uploaded to the site.

<— Return Home

31.cpp

#include <iostream>
#include <math.h>
using namespace std;

int main(){
    double a;
    double b;
    double c;
    double part1;
    double part2;
    double r1;
    double r2;

    std::cout << "Enter a, b, c: \n";
    std::cin >> a;
    std::cin >> b;
    std::cin >> c;

    part1 = pow(b, 2) - 4 * a * c;
    if (part1 == 0){
        part2 = -b + pow(part1, 0.5);
        r1 = part2 / (2 * a);
        std::cout << "The root is " << r1 << "\n";
    }
    else if (part1 > 0){
        part2 = -b + pow(part1, 0.5);
        r1 = part2 / (2 * a);
        part2 = -b - pow(part1, 0.5);
        r2 = part2 / (2 * a);
        std::cout << "The roots are " << r1 << " and " << r2 << "\n";
    }
    else
        std::cout << "The equation has no real roots\n";
}

<— Return Home