c语言函数(求方程a乘x平方加b乘x加c等于0的根.要求用三个函数分别计算复数根,两个不同实数根

c语言函数(求方程a乘x平方加b乘x加c等于0的根.要求用三个函数分别计算复数根,两个不同实数根

#include
#include
void main(){
double a=0, b=0, c=0;
double result_1, result_2, inscriber;
printf("请输入a,b,c\n");
scanf_s("%lf %lf %lf", &a, &b, &c);
if (b*b - 4 * a*c > 0){
result_1 = (-b + sqrt(b*b - 4.0 * a*c)) / (2.0*a);
result_2 = (-b - sqrt(b*b - 4.0 * a*c)) / (2.0*a);
printf("%lf %lf\n", result_1, result_2);
}
else if (b*b - 4 * a*c == 0){
result_1 = (-b) / (2.0*a);
printf("%lf\n", result_1);
}
else if (b*b - 4 * a*c < 0){
result_1 = (-b) / (2.0*a);
inscriber = sqrt(-(b*b - 4.0*a*c)) / (2.0*a);
printf("%lf+%lfi %lf+%lfi\n", result_1, inscriber, result_1, -inscriber);
}
}