float x=2 if (x

float x=2 if (x c语言找错误#include #include #includefloat area (float a,float b,float c){float area,p;p=(a+b+c)/2;area=sqrt(p*(p-a)*(p-b)*(p-c));return area;}main(){float x,y,z,ts;scanf(%d%d%d,&x,&y,&z);if(((x+y)>z)&&((y+z)>x)){ts=area(x,y,z);/*或者用scan #include main() { float x,y; scanf(%f,&x); if(x 求x^3-15x^2+16x-80一个实根,下面程序怎么算不出来#include#includefloat f(float x){return ((x-5)*x-16)*x-80;}float xpoint(float x1,float x2){return (x1*f(x2)-x2*f(x1))/(f(x2)-f(x1));}float root(float x1,float x2){float x,y,y1;y1=f(x1);do{ C语言题,求详解Main(){float x =2.0,y;if(x // void fun( float y ,float x[],) { x[0] = x[1] + x[2]; y = y + x[3] ; 下面的程序存在语法错误,请指出并予以修改#includeviod main ( ){ float x,y; //1if (x>0); //2x=x+y; //3cout #include mian() { float x,y; scanf(%f,&x); if(x>=0) { if(x>=100) y=-x; else y=x; } else c语言的问题,求x^3-5x^2+16x-80的根,我用的弦截法,但是出错#include#includefloat f(float x){float y;y=x*(x*x-5*x+16)-80;return y;}float xpoint(float x1,float x2){float root;root=(f(x2)*x1-x2*f(x1))/(f(x2)-f(x1));return root;}void main() 这个程序为什么运行不出结果呢.#include float p(float x,int n){float f;if(n==0)f=1;else if(n==1)f=x;elsef=(2*n-1)*p(x,n-1)-(n-1)*p(x,n-2)/n;return f;}main(){int x,n;scanf(%d%d,&x,&n);printf(%f ,p(x,n));} #include int main(void) { float x,printf(输入x: ); scanf(=%f,&x); if(x=10) y=1/x*x这个哪里错了.#include int main(void){float x,printf(输入x: );scanf(=%f,&x);if(x=10)y=1/x*x;elsey=2x;printf(f(%.2f)=%.lf ,x,y);return 0;} 编写由三角形三边求面积的函数.#includefloat kig(float x, float y,float z);main(){ float s,a,b,c; scanf(%f%f%f,&a,&b,&c); s=kig(a,b,c); printf(s=%f ,kig(a,b,c));}float kig(float x,float y,float z){ float p; p=1/4*(2*x*z+y*y-x*x-z*z); 用弦切法求f(x) =x^3 - 5x^2 + 16x - 80 的根,求证一下那里出问题了,输入-1 和8,结果是6.75.#include #include float t(float x){return (x*x*x - 5.0*x*x + 16*x - 80); }float t(float x1,float x2);{return ((x1 * f(x2) - x2 * f(x1)) / (f( 关于二次方程的C语言程序float pbgs(float a,float b,float c){float d；if(fabs(a)>1e-6){d=b*b-4*a*c; }return d;} void main(){float a=0,b,c,i,x;double x1,x2,p,q;while(a==0){printf(请输入二次项系数);scanf(%f,&a);printf(请输入 main() { float x,y; scanf(%f,&x); if(x>=0) y=x; else y=-x; printf(%f ,y); } 中scanf(%f,&x); 是什么 #include void main( ) { float x,y; scanf(%f,&x); if(x #include void main( ) { float x,y; scanf(%f,&x); if(x 这道题哪里出错了,main() { int x; float y; scanf (%d,x); if (x