#include<stdio.h>
#include<stdlib.h>
#include<math.h>
#define?EPS?1e-6
?main()
{
?float?a,?b,?c,?disc,?p,?q;
?printf("Please?enter?the?coefficients?a,?b,?c:");
?scanf("%f,%f,%f",?&a,?&b,?&c);
?if?(fabs(a)?<=?EPS)
?{
??printf("It?is?not?a?quadratic?equation!\n");
??exit(0);
?}
?disc?=?b?*?b?-?4?*?a?*?c;
?p?=?-b?/?(2?*?a);
?q?=?sqrt(fabs(disc))/(2*a);
?if?(fabs(disc)?<=?EPS?)
?{
??printf("x1?=?x2?=?%?.2f\n",p);
?}
?else
?{
??if?(disc?>?EPS)
??{
???printf("x1?=?%.2f,?x2?=?%.2f\n",p+q,p-q);
??}
??else
??{
???printf("x1?=?%.2f+%.2fi,",?p,?q);
???printf("x2?=?%.2f-%.2fi\n",?p,?q);
??}
?}
}
想知道我的關(guān)于解一元二次方程的程序為什么不能輸出正確解答，錯在哪里？
qq_踏破驚雷又為誰_04097195
2016-10-13 23:06:52