11.c

学习c语言时的一些例程

#include "math.h"
void main()
{float a,b,c,disc,x1,x2;
printf("%s","input a,,b,c:");
scanf("%f,%f,%f",&a,&b,&c);
disc=b*b-4*a*c;
x1=(-b+sqrt(disc))/(2*a);
x2=(-b-sqrt(disc))/(2*a);
printf("\nx1=%6.2f\nx2=%6.2f\n",x1,x2);
}