小编Bri*_*ian的帖子

我正在尝试编译,但我不断收到此错误,有人看到我的错误在哪里？

C:\ Users\BRIAN'~1\AppData\Local\Temp\cc2Feaaa.o(.text + 0x368)在函数`main'中:

[链接器错误]未定义引用`secant(double,double,double,double,double,double,double,double,double&,int&,double)

C:\ Users\BRIAN'~1\AppData\Local\Temp\cc2Feaaa.o(.text + 0x368)ld返回1退出状态

using namespace std;
#include<iostream>
#include<cmath>
#include<iomanip>
#include<fstream>
// Declaration of functions used
void writetable (double, double, double, double);
void secant(double, double, double, double, double, double, double, double, double&, int&, double);
void writedata (double, double, double);
double fx( double, double, double, double, double, double, double);

const double tol=0.0001;    // Tolerance for convergence
const int max_iter=50;      // Maximum iterations allowed
// main program
int main()
{
    int iteration;          // Number of iterations …