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,...
C语言 任意输入一元二次方程的系数a, b, c,计算并输出一元二次方程...答:include <stdio.h>#include <math.h>void main(){float a,b,c,x1,x2,disc;scanf("f%f%f%",&a,&b,&c); //改成scanf("%f%f%f",&a,&b,&c);disc=b*b-4*a*c;if(fabs(a)<=1e-6){x1=-c/b;printf("%2.4f",x1);}else if(disc>=0){x1=float(-b+sqrt(disc))/(2*...
用C语言编写程序,输入一元二次方程的系数a,b,c,计算方程的根(假设是两...答:if(a==0) //一元二次方程二次项系数不为0 { printf("data error\n");} else { disc=b*b-4*a*c;if(disc>0)root2(a,b,disc);else if(disc==0)root1(a,b);else root0();} return 0;} void root2(double a,double b,double disc){ double x1,x2;x1=(-b+sqrt(disc...
用C语言编写计算一元二次方程的根答:{ float x;x=(-b)/(2*a);printf("方程的根为%.2f",x);} 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)m(a,b,c);if(b*b-4*a*c==0)n(a,b,c);if(b*b-4*a*c<0)printf("方程无实数根\n");} ...