C++中求三次方程的根#include #include #include using namespace std;double f(double); //函数声明 double xpoint(double,double); //函数声明double root(double,double); //函数声明int main( ){ double x1,x2,f1,f2,x;do{coutx1>>x2;f1=f(x1);
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![C++中求三次方程的根#include #include #include using namespace std;double f(double); //函数声明 double xpoint(double,double); //函数声明double root(double,double); //函数声明int main( ){ double x1,x2,f1,f2,x;do{coutx1>>x2;f1=f(x1);](/uploads/image/z/11939387-59-7.jpg?t=C%2B%2B%E4%B8%AD%E6%B1%82%E4%B8%89%E6%AC%A1%E6%96%B9%E7%A8%8B%E7%9A%84%E6%A0%B9%23include+%23include+%23include+using+namespace+std%3Bdouble+f%28double%29%3B+%2F%2F%E5%87%BD%E6%95%B0%E5%A3%B0%E6%98%8E+double+xpoint%28double%2Cdouble%29%3B+%2F%2F%E5%87%BD%E6%95%B0%E5%A3%B0%E6%98%8Edouble+root%28double%2Cdouble%29%3B+%2F%2F%E5%87%BD%E6%95%B0%E5%A3%B0%E6%98%8Eint+main%28+%29%7B+double+x1%2Cx2%2Cf1%2Cf2%2Cx%3Bdo%7Bcoutx1%3E%3Ex2%3Bf1%3Df%28x1%29%3B)
C++中求三次方程的根#include #include #include using namespace std;double f(double); //函数声明 double xpoint(double,double); //函数声明double root(double,double); //函数声明int main( ){ double x1,x2,f1,f2,x;do{coutx1>>x2;f1=f(x1);
C++中求三次方程的根
#include
#include
#include
using namespace std;
double f(double); //函数声明
double xpoint(double,double); //函数声明
double root(double,double); //函数声明
int main( )
{ double x1,x2,f1,f2,x;
do
{coutx1>>x2;
f1=f(x1);
f2=f(x2);
} while(f1*f2>=0);
x=root(x1,x2);
cout
C++中求三次方程的根#include #include #include using namespace std;double f(double); //函数声明 double xpoint(double,double); //函数声明double root(double,double); //函数声明int main( ){ double x1,x2,f1,f2,x;do{coutx1>>x2;f1=f(x1);
你的f实现在哪儿了?