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求一元二次方程的根

时间:2023-09-21 23:34:39浏览次数:33  
标签:include int pow 一元二次方程 printf x2 x1


#include <stdio.h>

#include <math.h> int main() { int a, b, c;


scanf("%d%d%d", &a, &b, &c);
int d = pow(b, 2) - 4 * a * c;//pow是开根号,要引用math头文件
if (d >= 0)
{
	int x1;
	int x2;
	int x;
	if (d == 0)
	{
		x = -b / 2*a;
		printf("x = %d", x);

	}
	else if (d > 0)
	{
		x1 = (-b + sqrt(d)) / (2 * a);
		x2 = (-b - sqrt(d)) / (2 * a);
		printf("x1 = %d x2 = %d", x1, x2);


	}

}
else
{
	printf("无根\n");
}
return 0;

}

标签:include,int,pow,一元二次方程,printf,x2,x1
From: https://blog.51cto.com/u_16220477/7558311

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