（2）已知4对点的影像坐标和地面坐标：

3.实验程序

using System;

using System.Collections.Generic; using System.Linq; using System.Text;

namespace ConsoleApplication3 {

class Program {

static void Main() {

//输入比例尺，主距，参与平参点的个数 Console.WriteLine("请输入比例尺分母m：\r"); string m1 = Console.ReadLine();

double m = (double)Convert.ToSingle(m1); Console.WriteLine("请输入主距f：\r"); string f1 = Console.ReadLine();

double f = (double)Convert.ToSingle(f1);

Console.WriteLine("请输入参与平差控制点的个数n：\r"); string n1 = Console.ReadLine(); int n = (int)Convert.ToSingle(n1);

//像点坐标的输入代码

double[] arr1 = new double[2 * n]; //1.像点x坐标的输入

for (int i = 0; i < n; i++) {

Console.WriteLine("请输入已进行系统误差改正的像点坐标的x{0}值：\r", i+1); string u = Console.ReadLine(); for (int j = 0; j < n; j += 2) {

arr1[j] = (double)Convert.ToSingle(u);