c语言程序设计 设计一个求解一元二次方程的函数,在主函数中输入方程的系...答:void calcu(double a,double b,double c);int main(void){ double a, b, c;char ch;do { printf("请输入一元二次方程的三个系数:\n");printf("a=\t");scanf("%lf", &a);printf("b=\t");scanf("%lf", &b);printf("c=\t");scanf("%lf", &c);calcu(a,b,c);printf(...
用C语言编写一程序求解一元二次方程的根。答:void n(float a,float b,float c){ double x;x=(-b)/(2*a);printf("方程的根为%.2lf",x);} void f(float a,float b,float c){ printf("方程无实数根\n");} main(){ float a,b,c;printf("请输入a,b,c的值\n");scanf("%f%f%f",&a,&b,&c);if(b*b-4*a*c>0)...
c语言计算一元二次方程的根答:c语言计算一元二次方程的根如下:include<stdio.h>#include<math.h>voidmain(){doublea,b,c;doublex1,x2,p;printf("请输入a,b,c:");scanf("%lf%lf%lf",&a,&b,&c);printf("\n");p=b*b-4*a*c;x1=(-b+sqrt(p))/(2*a);。x2=(-b-sqrt(p))/(2*a);printf("x1=%f,...