轉置 C# 中的矩陣
矩陣轉置將矩陣透過對角線翻轉,將行元素放在列上,列元素放在行上。
例如 −
Matrix before Transpose: 123 456 789 Matrix after Transpose: 147 258 369
我們來看一個用 C# 編寫矩陣轉置的示例 −
示例
using System;
public class Demo {
public static void Main() {
int i, j, m, n;
int[, ] arr1 = new int[30, 30];
int[, ] arr2 = new int[30, 30];
Console.Write("
Enter the number of rows and columns of the matrix :
");
Console.Write("Rows entered = ");
m = Convert.ToInt32(Console.ReadLine());
Console.Write("Columns entered = ");
n = Convert.ToInt32(Console.ReadLine());
Console.Write("Set elements in the matrix...
");
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
Console.Write("
[{0}],[{1}] : ", i, j);
arr1[i, j] = Convert.ToInt32(Console.ReadLine());
}
}
Console.Write("
Matrix before Transpose:
");
for (i = 0; i < m; i++) {
Console.Write("
");
for (j = 0; j < n; j++)
Console.Write("{0}\t", arr1[i, j]);
}
for (i = 0; i < m; i++) {
for (j = 0; j < n; j++) {
arr2[j, i] = arr1[i, j];
}
}
Console.Write("
Matrix after Transpose: ");
for (i = 0; i < m; i++) {
Console.Write("
");
for (j = 0; j < n; j++) {
Console.Write("{0}\t", arr2[i, j]);
}
}
Console.Write("
");
}
}執行以上程式將會產生以下結果。在其中,需要讓使用者輸入行數、列數,以及矩陣元素 −
Enter the number of rows and columns of the matrix :3 3 Rows entered = 3 Columns entered 3 Set elements in the matrix... [0],[0] : 1 [0],[1] : 2 [0],[2] : 3 [1],[0] : 4 [1],[1] : 5 [1],[2] : 6 [2],[0] : 7 [2],[1] : 8 [2],[2] : 9 Matrix before Transpose: 123 456 789 Matrix after Transpose: 147 258 369
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