C++ プログラム #include <math.h> #include <stdlib.h> #include <time.h> #include <fstream> #include <sstream> #include <iostream> #include <string> #include <cstdio> #include <iomanip> #include <stdio.h> #include <complex> #include <direct.h> using namespace std; double PI = acos(-1.0); double e = 2.7182818284590452354; complex<double> I = complex<double>(0.0,1.0); int xN =2000; int N = 10; double dx =