这里面实现了大地测量中高斯正反算的解算

				// 高斯大地坐标正反算Dlg.h : header file
				//
				
				#if !defined(AFX_DLG_H__53A33098_653E_4BAE_951A_15218E1B2D47__INCLUDED_)
				#define AFX_DLG_H__53A33098_653E_4BAE_951A_15218E1B2D47__INCLUDED_
				
				#if _MSC_VER > 1000
				#pragma once
				#endif // _MSC_VER > 1000
				
				/////////////////////////////////////////////////////////////////////////////
				// CMyDlg dialog
				
				class CMyDlg : public CDialog
				{
				// Construction
				public:
					CMyDlg(CWnd* pParent = NULL);	// standard constructor
				    int JIZHUN;
					double X,N[5],a0[5],a4[5],a6[5],a3[5],a5[5]; //正算系数
					
					double BFZ[5],NF[5],b2[5],b3[5],b4[5],b5[5];  //反算系数
				    
				// Dialog Data
					//{{AFX_DATA(CMyDlg)
					enum { IDD = IDD_MY_DIALOG };
					CComboBox	m_JIZHUN;
					int		m_B1D;
					int		m_B1F;
					double	m_B1M;
					int		m_BD;
					int		m_BF;
					double	m_BM;
					double	m_DX;
					double	m_DY;
					int		m_L0D;
					int		m_L0F;
					double	m_L0M;
					int		m_L1D;
					int		m_L1F;
					double	m_L1M;
					int		m_LD;
					int		m_LF;
					double	m_LM;
					//}}AFX_DATA
				
					// ClassWizard generated virtual function overrides
					//{{AFX_VIRTUAL(CMyDlg)
					protected:
					virtual void DoDataExchange(CDataExchange* pDX);	// DDX/DDV support
					//}}AFX_VIRTUAL
				
				// Implementation
				protected:
					HICON m_hIcon;
				
					// Generated message map functions
					//{{AFX_MSG(CMyDlg)
					virtual BOOL OnInitDialog();
					afx_msg void OnSysCommand(UINT nID, LPARAM lParam);
					afx_msg void OnPaint();
					afx_msg HCURSOR OnQueryDragIcon();
					virtual void OnCancel();
					afx_msg void OnKillfocusCombo1();
					afx_msg void OnZS();
					afx_msg void OnFS();
					//}}AFX_MSG
					DECLARE_MESSAGE_MAP()
				};
				
				//{{AFX_INSERT_LOCATION}}
				// Microsoft Visual C++ will insert additional declarations immediately before the previous line.
				
				#endif // !defined(AFX_DLG_H__53A33098_653E_4BAE_951A_15218E1B2D47__INCLUDED_)