C语言编程问题

#include main() {float a,b,c,d,disc,x1,x2,realpart,imagpart; scanf("%f,%f,%f",&a,&b,&c); printf("The equation"); if(fabs(a)<=le-6) printf("is not a quadratic"); else {disc=b*b-4*a*c; if(fabs(disc)<=le