我有下面的类,它会为我评论的行产生此错误: 描述无效参数'候选者是:Eigen::Matrix Forward_Euler(double ( )(double), double ( )(double), double (*)(double)) ' 当我试图寻找解决方案时,我感到很困惑。
Forward Euler 的签名是:
Eigen::MatrixXd Forward_Euler(double (*f)(double), double (*gleft)(double), double (*gright)(double))
我的课是:
class C
{
protected:
A x;
B y;
double a;
double b;
Eigen::MatrixXd u;
public:
double f(double x)
{
return a;
}
double gleft(double tau)
{
return b
}
double gright(double tau)
{
return a*b;
}
FD_Euro_Put(): x(), y(), a(0), b(0){}
FD_Euro_Put(char y1, double y2, double y3, double y4, double x2,
double x3, double x4, double x5, double x6, double x7):
x(x1, x2, x3, x4, x5, x6, x7)
{
double Xleft = x1*x2;
double Xright = x1*x3;
double Tauf = x1*x1;
double NN = floor((x1/x2);
a = x1*x2 - 0.5;
b = x1*x2 + 0.5;
pde = HeatPDE(y1, NN, Xleft, Xright, Tauf, Alpha); //begin problem area
u.resize(pde.N+1, pde.M+1);
if(fdtype == 'f')
u = pde.Forward_Euler(&f, &gleft, &gright);
else if(fdtype == 'b')
u = pde.Backward_Euler(&f, &gleft, &gright);
else if(fdtype == 'c')
u = pde.Crank_Nicolson(&f, &gleft, &gright); //end problem area
else
cout << "Incorrect choice for finite difference type!" << endl;
}