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springwu鐵蟲 (初入文壇)
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[求助]
大家?guī)兔匆幌逻@個C#求解線性方程組的程序那里有問題?
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程序編譯沒錯誤,可是算出來的結(jié)果不對。小弟才學習C#還請多多指教! namespace 解線性方程組 { class Program { static void Main(string[] args) { int amount;//存儲方程組的方程個數(shù) double[,] m;//二維數(shù)組用于表示存放方程系數(shù)的系數(shù)矩陣 double[] solution;//一維數(shù)組用于存放方程組的解 double t1, t2; Console.WriteLine("Input number of equation" ;//接收用戶輸入的方程個數(shù)amount = Convert.ToInt32(Console.ReadLine()); m = new double[amount, amount + 1]; solution = new double[amount]; Console.WriteLine("Input coefficient of equation" ;for (int i = 0; i < amount; i++) { for (int j = 0; j < amount + 1; j++) m[i, j] = Convert.ToDouble(Console.ReadLine()); } Console.WriteLine("The coefficient of equation is:" ;Console.WriteLine("-------------------------------" ;for (int i = 0; i < amount; i++) { for (int j = 0; j < amount + 1; j++) Console.Write("{0,8}", m[i, j]); Console.WriteLine(); } for (int i = 1; i < amount; i++) { for (int j = i; j < amount; j++) { double coef = -m[j, i - 1] / m[i - 1, i - 1]; for (int k = i - 1; k < amount + 1; k++) { m[j, k] += m[i - 1, k] * coef; } } } t1 = m[amount - 1, amount - 1]; solution[amount - 1] = m[amount - 1, amount] / t1; for (int i = amount - 1; i >= 0; i--) { t2 = 0d; for (int j = i + 1; j <= amount - 1; j++) { t2 += m[i, j] * solution[j]; } solution = (m[i, amount] - t2) / m[i, i]; } Console.WriteLine(); Console.WriteLine("\n The result is:" ;Console.WriteLine("-----------------------" ;for (int i = 0; i < amount; i++) { Console.WriteLine("x[{0}] = 1", i, solution); } Console.Read(); } } } |

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