这个函数root()可以求虚根#include #include void root(double, double, double);int main(){ double a, b, c; printf("Please enter the coefficients a, b, c:"); scanf("%lf%lf%lf", &a, &b, &c); root(a, b, c); return 0;}void root(double a, double b, double c){ if(a == 0) printf("Wrong param...
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