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#include<stdio.h> #include<math.h> int main() { double x1,x2,,a,b,c double deta; scanf("%lf,%lf,%lf",&a,&b,&c); deta=b*b-4*a*c; if(deta<0) { printf("该方程不是二次方程!"); } else { x1=(-b+sqrt(deta))/(2*a); x2=(-b-sqrt(deta))/(2*a); printf("x1=%f,x2=%f",x1,c2); } } return 0; }
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不写这个可以吗?