[求助]大家看一个程序_C语言

[求助]大家看一个程序

关于求方程的解的
printf("The equation");
if(fabs(a)<=1e-6)
printf("is not a quadratic\n");
else
{disc=b*b-4*a*c;
if(fabs(disc)<=1e-6)
printf("has two equal roots:%8.4\n",-b/(2*a));
else if(disc>1e-6)
{x1=(-b+sqrt(disc))/(2*a);
x2=(-b-sqrt(disc))/(2*a);
printf("has distinct real roots:%8.4and%8.4\n",x1,x2);
}
else
{realpart=-b/(2*a);
imagpart=sqrt(-disc)/(2*a);
printf("has complex roots:\n");
printf("%8.4f+%8.4fi\n",realpart,imagpart);
printf("%8.4f-%8.4fi\n",realpart,imagpart);
}
}
}
本来如果输入1，2，1
运行结果为：The equation has two equalroots:-1.0000,
但是实际运行结果为The equation has two equalroots:%8.4f,
为什么啊

搜索更多相关的解决方案: equation border center

----------------解决方案--------------------------------------------------------
printf("has two equal roots:%8.4\n",-b/(2*a));

printf("has distinct real roots:%8.4and%8.4\n",x1,x2);

忘了f

----------------解决方案--------------------------------------------------------
printf("has two equal roots:%8.4\n",-b/(2*a));

printf("has distinct real roots:%8.4and%8.4\n",x1,x2);

忘了f

----------------解决方案--------------------------------------------------------
呵呵，我什么时候才能细心啊

----------------解决方案--------------------------------------------------------
你们是高手
我自认不行
看不懂
----------------解决方案--------------------------------------------------------

[求助]大家看 一个 程序

[求助]大家看一个程序